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 Cold sore is FLASHING and PULSINGOkay, so I've had quite a few cold sores and lip infections.
 
 Today I woke up with a cold sore, and I made sure to start drinking a lot of water, eating super healthy to aid those white blood cells in fighting them off, and popping in l-lysine tablets.
 
 Anyway, so I looked in the mirror and it's pulsating. Not only can I feel it pulsing, but in the mirror it actually looks to be flashing white and red constantly.
 
 I checked this morning and it's continually happening. It's SERIOUSLY like a siren.
 
 Anyway, I just wanted to know if that means the virus is continually growing/spreading or if it's starting to dye down because of the white blood cells.
 
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 usually the cold sores heal within 2 weeks.use analgesics either orally or topically.acyclovir cream 2 g apply 5 times a day for 5 days. if lesion is severe take valacyclovir tablet 500mg bd.these antiviral speedup the healing .apply antiseptic to prevent secondary infection.wash frequently with soap and water.apply cold or warmth .
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 I also get cold sores occasionally. If you can feel and/or see any changes in the cold sore, it means it's still active and growing. Generally once it's past the active stage of growth, you can't feel anything. You just noticed it this morning, so the virus is still active. Once it dies down, as I'm sure you know, the cold sore stops growing, then starts to shrink down and scab over. Keep eating healthy and drinking water.. I've also read that lysine tablets can help, but I think it should be used more as a preventative measure. Stress doesn't help. So in short, the pulsating you feel/see means the virus is active. I make sure to have a tube of Abreva cream at home, and any time I feel tingling on my lip, even before a cold sore appears (I can sense it coming), I put some Abreva on continuously (maybe 2-3 times), and it usually prevents the cold sore from getting big, and speeds up healing time by a lot.
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