herpes simplex
"I get Cole sores when my immune level decreases.  Some of them are large enough to give a zip code to. I have had them take up 1/2 my lip and creep to my chin. If I take 2400 mg (two 1200 pills) at the start, and 1 every day it either stops it or shortens it.  I've tried many other otc meds but L-Lysine seems to work the best.  Much more affordable than Abriva."