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Prevent and Cure the Flu (Influenza)
The Comprehensive Guide by Pharmacist Tom
 |
Unlike the
common cold, the flu
(influenza) can results in serious health complications. In the past,
epidemics of influenza killed millions of people
worldwide. |
 |
Introduction
The
flu is properly called influenza, an acute (short-term) viral infection
that attacks
the upper respiratory tract (nose, throat, sinuses
and bronchial tubes). Most people infected with this virus can expect
to fully recover in 7 to 10 days. Unlike the common cold,
the influenza virus claims the lives of about twenty thousand
people in the United States and four to eight thousands lives in Canada
every year.
Facts
and Frequently
Asked Questions and Answers
Natural Home Remedies to Prevent and
Cure the Flu
| Natural
Remedy |
What
experts say about them |
Echinacea
(Echinacea
purpurea) |
(What's this?)
Echinacea is shown to reduce the duration of the symptoms in
clinical studies. This herb is known to boost the immune system.
Dose:
Take 300 mg three times daily. Tincture
- Use 3 to 5 mL three times daily. Take it for up to 14 days with the
first appearance of symptoms.
Avoid using it
regularly as it doesn't seem to prevent you from catching the influenza
virus. Experts suggest not using echinacea in children due to reports
of allergic reactions such as rash.
|
| Vitamin C |

Vitamin C enhances the immune system function by increasing white
blood cells activities. In one study, subjects given 100 mg of vitamin
C daily for 10 months were 28% less likely to catch the influenza
virus.
Moreover, their symptoms lasted 10% shorter.
Another study
showed that mega dose of vitamin C reduced the duration of the
influenza symptoms significantly. Other studies show similar benefits
(although there are also studies that show it doesn't work).
Dose:
Take 1,000 to 2,000 mg (1 to 2 grams) three or four times daily.
Note:
Click here
to get details on megadose therapy with vitamin C. Ultra high
dose vitamin C therapy (over 3,000 mg daily and usually much
higher) should be supervised by a healthcare professional
experienced in this area.
|
| Elderberry |

Elderberry is a rich source of anthocyanidins,
tannins, flavonoids
and rutin. These chemical substances are known to benefit and regulate
the immune system in our body as well as acting as an antioxidant.
A small well-designed
clinical study showed that subjects taking elderberry recovered from
influenza faster than those taking a placebo. Similar
results may be expected for treating influenza as well.
Dose:
Typical dosage used is 15 mL (1 tablespoon) taken up to four times
daily.
Take within 2 days of the start of symptoms for maximum benefit.
|
| Garlic |

Some clinical studies show that taking garlic regularly seems to reduce
the chance of catching the flu and the common
cold.
Dose:
Take 200 to 400 mg up to three times daily. Click
here to see the comprehensive review on this versatile herb.
|
| Ginseng |

Ginseng is shown to stimulate the immune system and may be helpful in
preventing and treating the flu and the common
cold.
Dose:
Take 200
mg daily to prevent catching the flu. Higher dosages have been
used. Click
here to get the full review and other dosages for ginseng.
|
Andrographis
|

Andrographis
stimulates the immune system and increases the activity of
germ-fighting white blood cells. It also seems have anti-allergic
activities to help with symptoms such as running nose and
watery
eyes. Andrographolide is the main active ingredient found in
andrographis.
Initial clinical studies suggest it may be helpful in treating flu
symptoms and reducing the risk of complications. (Clinical studies have
shown that it works in treating the common cold.)
Dose:
Take 200 to 300 mg along with ginseng
three times daily. Take for a duration of 3 to 5 days.
|
Astragalus
(Astragalus membranaceus) |

There
is some evidence that taking astragalus may reduce the chances of
catching the flu. Studies show that it can boost the immune
system and have a positive effect on the immune cells in our body.
Dose:
Suggested dose to use is 250 mg four times daily.
|
| Sage |

Sage
is shown to have antiviral activities in animal and lab studies.
Mouthwash
containing sage reduces the pain from sore throat. It is
commonly
used in Europe for treating mouth and throat inflammation.
The German Commission E approves its use for treating a sore throat.
Dose:
Infusion
- Use 3 grams of the herb in 150 mL of water or use 3 drops of the
essential oil in 100 mL of warm water. Gargle up to three times daily
or as often as needed to get relief from sore throat.
|
Slippery Elm
(Ulmus
rubra) |

Slippery
elm lozenges help treat the pain from a sore throat and the
cough.
It
is a demulcent which soothes and protects an irritated mucous membrane.
Dose:
As a lozenge, follow manufacturer's direction. A typical lozenge
contains about 150 mg of slippery elm.
|
Boneset
(Eupatorium
perfoliatum) |

Boneset
is shown in lab studies to be effective in boosting immune functions of
the white
blood cells. It has been traditionally used to help treat viral
infections.
Dose:
Steep
1 to 2 grams of the herb in 150 mL of boiling water. Drink three times
daily as needed during the duration of the symptoms.
Extract
(1:1) - Take 1 to 2 mL three times daily.
|
| Goldenseal |

Goldenseal may
provide relief from the pain of a sore throat. It possesses antiviral
and immune boosting effects in laboratory studies.
Dose:
Suggested dosage is 0.5 to 1 gram of the powder in capsules or tablet
form taken three times daily. Extract (1:1)
- Take 0.3 to 1 mL up to three times daily. Tincture (1:10)
- Take 2 to 4 mL up to three times daily.
|
| Oil of Oregano |

Oil of oregano shows potent activity against viruses and may be helpful
in killing off the influenza virus.
Dose:
Typical dosage used is 500 mg up to four times daily as per
manufacturer directions.
|
| Cordyceps |

Cordyceps regulates
and boost the immune system. It can be helpful in treating
viral
infections such as with the influenza virus.
Dose:
Take 500 mg two or three times daily.
|
| Peppermint Oil |
Helpful
Peppermint oil seems to help treat sinus and chest congestion.
Dose:
Use 3 to 4 drops of peppermint oil in 150 mL of hot water and inhale up
to three times daily to help with nasal congestion.
Nasal ointment - Use a 1% to 5% nasal gel applied into the
nose up to three times daily to help with a stuffy nose.
Humidifier
- Place several drops of peppermint oil (along with eucalyptus oil if
desired) into a humidifier.
|
| Eucalyptus Oil |
Helpful
Similar to peppermint oil, eucalyptus may be helpful with sinus and
chest congestion.
Dose:
Use 3 to 4 drops of eucalyptus oil in 150 mL of hot water and inhale up
to three times daily.
Humidifier
- The essential oil may be added to a humidifier along with peppermint
oil.
|
Ginger
(Zingiber
officinale) |
Helpful
Ginger is helpful in treating sore throat, fever and pain. It
will
also settle the stomach and reduce coughing. Its sedative
effect will help you sleep better at night.
Dose:
Take 500 mg or use the tea formulation. Use up to four times daily as
needed for the duration of the flu.
|
| Catnip |
Helpful
Catnip is classified as a diaphoretic (promotes sweating), thus it may
be helpful in treating colds with a fever.
Dose:
Use prepared tea bags or make a decoction by
boiling 1 to 2 teaspoon in a cup of water (250 mL) for 10
minutes. Drink three times daily.
|
Aniseed
Blackberry
Blueberry
Borage
seed oil
Forsythia
Honeysuckle
Stinging
nettle
Yarrow
|
Helpful
The following herbs have been traditionally used to treat the
symptoms of the flu and the common
cold.
Some
of these herbs have been shown to have antiviral activities and immune
boosting activity in lab studies. Others, such as blueberry and
blackberry show anti-inflammatory benefits and is traditionally used to
treat sore throat and other flu symptoms.
|
Facts
and Frequently
Asked Questions and Answers
Facts
on the influenza virus (the flu)
Flu season
typically happens between
November and April in Canada. It generally takes 48 hours after
catching
the flu virus before the symptoms show up.
See the table below for symptoms of the flu (along with a comparison
with the common cold).
Many people have difficulty in distinguishing between the two as the
symptoms are quite similar.
What
are the types of flu virus?
There are
three main
strains of flu virus; A, B
and C. Influenza A virus can attack humans, pigs, horses and birds.
Influenza B and C only attack humans. By far, influenza A is the most
common type humans get.
The
Swine Flu (H1N1)- What is it and why all the dangers, warnings and
global concerns?
This
is a highly contagious form of the influenza virus. It was first
isolated from swine, hence the name. Swine is a name given to a group
of stout, cloven-hoofed animal with thick hide. It has a snout and
usually a short tail. An example would be the pig.
Why is it so
bad?
In
the past, the swine influenza virus (also referred to as
H1N1
virus) only infected pigs and not humans, thus we have never developed
any immunity against this strain. It spreads as easily as any
other strains of the influenza virus.
Although the H1N1 virus was
transmitted from pigs to humans, infected humans can transmit it to
other humans and even back to the pig (for example, people working in
the pig production farms.

Why does the flu vaccine need to
be "updated" each year?
Virus
can and will mutate to "survive". Once the virus mutates (changes it's
DNA or one or more proteins outside the "shell") , it renders the
current vaccine
useless for this new strain of virus.
Moreover, our own immune system also won't recognize this "new" virus
and it will take some time for our own immune system to develop
protection against it.
The
flu vs. the common cold - What are the symptoms?
The flu (influenza), also caused by a virus, can be a serious health
condition as it can cause pneumonia, bronchitis and other lung-related
health problems.
| Flu (Influenza) Symptoms |
Common Cold Symptoms |
| Weakness, sore
throat, congestion and body
aches |
Weakness, sore
throat, congestion and body
aches/discomfort |
| Sudden onset of severe aching, pain and
headaches |
Symptoms develop more gradually and are not
as severe |
| High fever and chills |
Usually there's no fever or that it's mild |
| Severe fatigue and discomfort requiring bed
rest. |
Mild fatigue; you can still "function",
although not as efficiently
|
If
you have flu symptoms, you should follow up with your family doctor,
especially if you have a history of problems with your respiratory
system.
How
long does the flu last? What's the incubation period?
Click here
to get the full details on how long the flu last.
It generally takes 48 hours after catching
the flu virus before the symptoms show up. This time before the
symptoms shows up is called the incubation period.
What
else can I do to prevent catching it or to get relief from the flu?
-
It is important to wash hands frequently and
keep it away from eyes, nose and mouth.
-
Get enough rest and sleep.
-
Exercise regularly to maintain the health of
your body and immune system
-
Work on controlling and reducing stress.
- Maintain a healthy diet by eating more fruits
and vegetables.
-
Consider preparing chicken soap containing
ginger, scallions and rice noodles. It is shown in some small studies
to be helpful in fighting off the symptoms of the
common
cold.
-
Meditation may be helpful to regulate the
immune system and reduce stress.
-
Salt water gargle is helpful for treating sore
throat.
- Use a nasal lubricant gel to keep the nose
moist and prevent irritation from frequent nose blowing if necessary.
-
Humidify the air with a humidifier to make
your sore throat
more comfortable.
-
Sneezing
easily spreads the virus. Cover your mouth and nose and sneeze into a
tissue or onto your shirt sleeve. Wash your hands right after. Sneeze
towards to floor to avoid making the virus airborne.
-
Avoid sharing cups, knives, forks and
spoons in the kitchen.
-
Try to use separate face towels and hand
towels for each family member.
-
Try to stay
away from those with the flu when possible. Indeed, crowded living and
working areas increases the chance that you might catch the influenza
virus.
-
Try to disinfect your bathroom, especially if
someone in the house has the flu.
-
If practical, sleep in a separate room to
avoid transmitting the virus to your spouse or children.
-
Wear a face mask (N95 type), if practical, to
avoid spreading the virus.
- Smoking increases the likelihood of getting a
flu as it weakens the immune system.
What
diet should I be on if I want to prevent or cure the flu?
A healthy diet will allow your body to fight off the influenza virus
better.
Foods you
should eat more of...
- Water, lemon or herbal tea - avoids dehydration
- Fruits and vegetables
- Light meals are recommended
- Increase garlic, ginger and onions
Foods to avoid...
- Sugar - It negatively affects the immune system.
- Diary products - Milk and cheese may worsen
congestion as they promote mucus production.
- Avoid fruit juice as they are high in sugar
content. You may dilute the juice first to reduce the amount of sugar
you take in.
- Excessive caffeine
reduces the amount of zinc
in your body. Zinc is an essential mineral for maintaining immune
function.
What
are the complications of the flu?
One
of the complication of suffering from the flu is the risk of developing
a bacterial infection (pneumonia) in the lungs, especially in the
elderly and those with a weakened immune system.
Often, as the person appears to be recovering from the flu, the
following symptoms reappear:
- high fever
- chest pains when coughing or breathing
- intense chills
- coughing up thick greenish sputum
If any of these symptoms reappear, medical treatment may be required.
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References & Health Canada Printed
References
Created: December 26, 2009

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