What to do if there's constant pimples on my upper lip that come and go?

Pimple/ Sun Blisters: Sun Blisters resemble pimples on the upper and lowers lip. There is an itchy pin prick feeling in the tissues before the bubble appears. They are usually caused by excessive sun exposure. They are viral. Increase vitamin C, B12, and take 1000mg lysine.. each 3xday. This initiates healing faster 5-7 days vs 14days. If they persist seek a professional. My Best BD

Herpes vs sun: blisters so see your doctor to get the correct diagnosis.

HSV 1 : Herpes simplex is divided into two types: HSV type 1 and HSV type 2. Both of these conditions can affect your mouth or your genitals and can be spread via oral sex, but not trough clothing. There no cure for HSV infection and often stress is an aggravating factor. Cold sores generally clear up without treatment within 10-14 days.