Our expert says:
Tan, it sounds like a normal fever blister from this side of the screen. It is caused by a herpes virus but not the same one as the one that causes genital herpes. Genital herpes is caused by the herpes simplex virus type 2 (HSV-2) in 95% of cases (the other 5% is caused by herpes simplex virus type 1 (HSV-1)). HSV-1 usually causes fever blisters on the lips. As a matter of interest – there are at least 7 types of herpes viruses. Type 3 causes chickenpox and shingles, type 4 causes glandular fever, type 5 is cytomegalo virus and they’re not exactly sure what diseases are caused by type 6 and 7.
You don’t have to worry about it as it isn’t dangerous and next time it feels like it is coming out again, get something like Zovirax® ointment from your pharmacy. Good luck.
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