I've read many different things online and not sure what's the best. My doctor prescribed me 400mg pills for 3 times a day when i get the first sign of a cold sore. I've read online different people saying you need it 5 times a day or only twice a day. Does anyone know how many times a day is correct? How long does the drug stay active in your system before you need to take the next pill? This is my first time fighting a cold sore with drugs and it seems to be working, my cold sore hasn't ruptured but i still can see the bubbles on my lip but it doesn't have pain like it usually does and it doesn't look like they are going to rupture open.
any help is much appreciated as far as dosage goes and if i'm doing the correct thing.
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