How to Take Lysine for Fever Blisters
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 1. Lysine is available in tablet form in the supplement section of most major drugstores. Always consult your physician before starting a supplement program.
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.
Calories in One Kiwi Fruit
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.
Make lifestyle changes. Eat a healthy diet, get adequate rest and wear sunblock to help prevent further outbreaks, according to MayoClinic.com 2.
If you continue to get frequent outbreaks, or if this outbreak does not resolve within 14 days, consult your physician for more aggressive treatment.
High doses of lysine may cause gallbladder disease, according to the University of Maryland Medical Center. Do not take more than the recommended dose, and do not take the 9,000 mg dose after the fever blister has healed. If you are pregnant, nursing or have kidney disease, consult your physician before taking lysine. Do not take lysine with arginine supplements. Arginine may lower your lysine levels. Avoid kissing or sharing utensils with others during an outbreak. Avoid touching your eyes or genitals during an outbreak. You may spread the virus to these areas, according to MayoClinic.com.
Calories in One Kiwi Fruit
How to Use L Arginine & L Citrulline for High Blood Pressure
Can Shingles Affect Your Joints?
How to Treat Yeast Infections With Probiotics
How To Heal a Really Bad Cold Sore
Vitamins and Minerals for Fever Blisters
How to Heal Tongue Sores
How to Relieve a Sore Mouth From the Side Effects of Amoxicillin
How to Lose Weight After I Stop Taking Celexa
How to Take Kava Kava to Relieve Anxiety & Stress
- University of Maryland Medical Center: Lysine
- MayoClinic.com: Cold Sores
- Singh M., Rao D.M., Pande S., Battu S., Mahalakshmi K., Dutt K.R., Ramesh M. Medicinal uses of l-lysine: past and future. Int. J. Res. Pharm. Sci. 2011;2:637–642
- Mailoo VJ, Rampes S. Lysine for herpes simplex prophylaxis: a review of the evidence. Integr Med (Encinitas). 2017;16(3):42-46.
- DiGiovanna JJ, Blank H. Failure of lysine in frequently recurrent herpes simplex infection. Treatment and prophylaxis. Arch Dermatol. 1984 Jan;120(1):48-51.
- Chi CC, Wang SH, Delamere FM, Wojnarowska F, Peters MC, Kanjirath PP. Interventions for prevention of herpes simplex labialis (cold sores on the lips). Cochrane Database Syst Rev. 2015; 8):CD010095. doi:10.1002/14651858.CD010095.pub2
- Singh BB, Udani J, Vinjamury SP, et al. Safety and effectiveness of an L-lysine, zinc, and herbal-based product on the treatment of facial and circumoral herpes. Altern Med Rev. 2005;10(2):123-7.
- Lakhan SE, Vieira KF. Nutritional and herbal supplements for anxiety and anxiety-related disorders: systematic review. Nutr J. 2010;9:42. doi: 0.1186/1475-2891-9-42
- Fini M, Torricelli P, Giavaresi G, Carpi A, Nicolini A, Giardino R. Effect of L-lysine and L-arginine on primary osteoblast cultures from normal and osteopenic rats. Biomed Pharmacother. 2001 May;55(4):213-20. doi:10.1016/s0753-3322(01)00054-3
- Leinonen I, Iannetta PPM, Rees RM, Russell W, Watson C, Barnes AP. Lysine supply is a critical factor in achieving sustainable global protein economy. Frontiers in Sustainable Food Systems. 2019;3. doi:10.3389/fsufs.2019.00027
- Akabas SR, Vannice G, Atwater JB, Cooperman T, Cotter R, Thomas L. Quality Certification Programs for Dietary Supplements. J Acad Nutr Diet. 2016;116(9):1370-1379. doi:10.1016/j.jand.2015.11.003
- Civitelli R, Villareal DT, Agnusdei D, Nardi P, Avioli LV, Gennari C. "Dietary L-lysine and calcium metabolism in humans." Nutrition. 1992 Nov-Dec;8(6):400-5.
- Shaheen E Lakhan, Karen F Vieira. "Nutritional and herbal supplements for anxiety and anxiety-related disorders: systematic review." Nutrition Journal. October 2010. 9:42doi:10.1186/1475-2891-9-42. 7.
- Smriga M, Ando T, Akutsu M, Furukawa Y, Miwa K, Morinaga Y. "Oral treatment with L-lysine and L-arginine reduces anxiety and basal cortisol levels in healthy humans." Biomed Res. 2007 Apr;28(2):85-90.
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.