I don't think I've ever had a cold sore before, but I'm not sure if it do now.
Yesterday morning I woke up and was fine. after being up for about an hour, it felt like something had bitten me on the lower lip (on the out edge by my chin).
In less then 20mins there was a tingly and little bit itchy lump/blister. Can they appear that quickly??? (The cold sore cream ads make it sound like the tingly lasts for a few hours....?)
It is bigger now (maybe a cluster of 4 pin size blisters/lumps). Feels swollen and sore but not tingly.
Do you think it's a cold sore or something else???
And if it is, what is the best treatment?