Canker* sores, not cold sores (aka feverblisters)related to herpes simplex type 1, what to do?

Herpetic lesions. Canker sores of herpetic origin can be treated palliatively to give relief from the soreness. Abreva is an over-the counter topical gel/medication that you can purchase at your pharmacy that will reduce the length of time that the lesion is active. Your dentist or physician can also prescribe an anti-viral drug (ie. Acyclovir) that can also reduce the length of time and/or onset of appearance.