Doctor prescribed me herpes prevention medication

So my doctor prescribed me herpes mediation even though my blood test is negative. He says i should take it anyways for 6 months b/c it "fights the same bacterial" thats stopping me from healing. Seems kinda farfetch b/c i know Antibiotics and other drugs doesnt seem to work. They said i had bacterial but they didnt specify where so im assuming my gut because ive been having digestive problems recently. Im think of going on a candida diet and a more natural method. Interesting thing is that when I had track and field couple months ago, my lips were alot better, i would have thought the opposite because i was constanly out in the sun and breathing alot. So im very convinced that excersing plays a big role in curing. Although ive been very lazy and having little to no excersie. and my lips are worser than before. Should I take it? I really dont want to but my mom doesnt seem to understand that pills wont help this issue. Also i looked online and its about $130//10days which is a big no no for me but my mom thinks otherwise...Thank you! Tweet