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how much l lysine for cold sore
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General Health
Question #26723
90 days ago
161

how much l lysine for cold sore - #26723

Simran

I am really trying to figure out how much l lysine for cold sore treatment because I keep getting these awful breakouts. Like, a month ago, I felt one coming and, of course, I didn’t think much of it and then bam! It was like this giant painful mess on my lip. I read somewhere that l lysine could help, but I’m honestly confused about the dosage. One site says take a 1,000 mg a day but another said to take more if it’s really bad, but how much l lysine for cold sore is too much? I went to the pharmacy yesterday and was staring at all the supplements, but nothing really explained doses well. I started taking 1,000 mg, but I just don’t know if that's enough or if I should be upping it when I feel it coming on, you know? I’ve tried other stuff like creams and all that, but nothing seems to work as fast as I want. There’s also this weird feeling of dread every time I feel that tingling, like it’s going to turn into another outbreak. I’ve heard mixed opinions, some people swear by l lysine and others are like, it doesn’t do anything. Just wondering if there's a clearer answer on how much l lysine for cold sore problems or what your experiences have been. Thanks!

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Doctors' responses

For the use of L-lysine in managing cold sores, a typical dosage that many people find helpful is around 1,000 mg taken one to three times a day during an active outbreak. L-lysine is believed to work by blocking the activity of arginine, an amino acid that herpes simplex virus (which causes cold sores) needs to replicate. So, in theory, it might reduce the frequency or severity of outbreaks. If you’re starting to feel the initial tingling or itching that often precedes a blister, you could consider increasing your intake to 2,000 to 3,000 mg per day in divided doses to potentially curb its progression. However, it’s important to understand that the scientific evidence on the effectiveness of lysine for cold sores is mixed; some studies suggest it may reduce recurrence or duration, while others show little to no benefit.

Be cautious though — taking high doses of supplements could lead to unwanted side effects like stomach upset or diarrhea, especially if you go beyond 3,000 mg daily for extended periods. Always ensure that you’re also considering other triggers that might prompt an outbreak, like stress or fatigue, and manage them accordingly. If you find that lysine or topical treatments aren’t providing enough relief or outbreak are getting more frequent or severe, it’s worth discussing with a healthcare provider. They might consider antiviral medications such as acyclovir or valacyclovir, which can be more effective for some people. Lastly, as with any supplement, it’s a good idea to run your plans by a healthcare provider, particularly if you have other health issues or are taking other medications, just to make sure there’s no risk of interaction or an underlying issue that needs attention.

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