Hello, this is my first time on this site, and I am glad it exist...I have a son who is 17, and we were traveling all day today by plane 11/24. Anyways, I noticed a red area on his forehead forming, but I thought it was a pimple he busted. I wasn't until we reached our destination that he has a red couping of a few blisters in the middle of his forehead. I am wondering what to do for him? Is there a period you can catch this and it not come back, or that it may just be a cold sore of simplex 1 and not simplex 2 of Herpes? Once, I noticed it I urged him not to pick and to be more thorough in his cleaning and contact with others. I cleaned the site with hydrogen peroxide, and I gave him a Aclyvoir to take? Please advise what to do and if he should have a test or go to a urgent care center? Thank you