Have you tried Propolis cream?- available from Health Food stores - my brother in law swears it to be miles better than any of the over the counter tiny tubes of ointment that are available..
Once you have it the coldsore it will takes its course.I find that taking zinc tablets helps to heal it.Also dab some sudocream on at night.I take a lysine tab everyday helps to keep them away.This works for me and my sister.Zinc tabs are good for healing.
I know - but I had a thread locked for violating this guideline by asking about the suitability of a pair of gloves. Just looking for consistency from AAM mods.