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How to Take Lysine for Fever Blisters

by
author image Andy Jackson
Andy Jackson has been writing professionally since 2010. He is a certified personal trainer and yoga instructor in Cincinnati, Ohio. Jackson is also a lifestyle and weight management consultant whose work has appeared in various online publications. He holds a Bachelor of Science in kinesiology and health, and a Master of Science in sports studies from Miami University in Oxford, Ohio.
How to Take Lysine for Fever Blisters
Woman with fever blisters on her lips Photo Credit apichsn/iStock/Getty Images

Fever blisters, also known as cold sores, are caused by the herpes simplex 1 virus. The virus lies dormant in your body and is usually kept in check by your immune system until something, such as an illness or stress, weakens your system and triggers an outbreak. Lysine, an amino acid, may help prevent or reduce the duration of these outbreaks, according to the University of Maryland Medical Center. Lysine is available in tablet form in the supplement section of most major drugstores. Always consult your physician before starting a supplement program.

Step 1

Swallow one 1,000-mg capsule of lysine. Consume the supplement three times per day, with a full glass of water or juice, to prevent outbreaks. Take one dose in the morning, one at midday and one in the evening.

Step 2

Take up to 9,000 mg per day to treat an outbreak. Use the lysine at the first sign of a fever blister, usually when you feel the distinctive tingle in your lip. Break the doses up into three daily doses and take it with a full glass of water. Continue using this dose until the fever blister heals.

Step 3

Make lifestyle changes. Eat a healthy diet, get adequate rest and wear sunblock to help prevent further outbreaks, according to MayoClinic.com.

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