Guys, I had shingles (Herpes zoster) virus 35 years back at the base of my spine. The marks are still there. So what antiviral should i try. i googled and found that acyclovir is suitable for this (Cheapest). Or should I try something else ? What dosage and what duration should I be on it ? I dont want to over load my liver and kidneys since I am already on a lot of medications for epilepsy and depression. Please advice. Thx.