Herpes 1&2, .
can have either 1 or 2 on mouth, or genitals.
I can recall girl in secondary having on her lip, another girl shared her soft drink and got one same place on her lip 2 weeks later.
Research shows majority of people exposed, but many never get flare up. You might get flare up years after - if you immune system can suppress it.
so not necessary to just have contact 2 weeks before. can be years before, could be that can of Coke you shared.
Some are triggered by injury, bump on face, chapped lips, sunburn lips. Other illness, fatigue.
Can spread it on your own body if not careful.
Many women get more flare-up in menopause.
Superdrug- you can get antivirals online doctor. You can get many many weeks worth. Taking it as soon as feel it start can mean never get the blister.
Superdrug customers figure out that you must say have genital heroes to get prescription - so if want for mouth, must lie to superdrug. Not really a big deal, caring for self - lip cold sores are painful too!!
Lots of just factual info online. Very very common easily spread virus, not always sex. I’m sure those girls in secondary were not having sex. The one w the cold sore said - don’t drink that - I have a cold sore. The other girl drank it anyway.