I've been on methotrexate for about 10weeks now and it's really helping but I've had what I think are coldsores on and off for about 3 weeks now. They're little white painful pimples which pop and crust...TMI sorry! first in my nostril and now I've got one above my lip. I'm not sure whether to see the Dr or just keep up with the zovirax. Has anyone else had this problem?