Aside from acyclovir, what are other recomended cheap anti viral oral mdicine to cure herpes zoster?

Go see your doctor: What's available depends upon where you live. Given that you're in philippines, you'll need to ask your doc since i'm only familiar w/those drugs available here in the states: acyclovir, Famciclovir & valacyclovir. Check out http://www.Aafp.Org/afp/2000/0415/p2437.Html for more info. You want to start one of these within 72hrs of noticing rash. Post-herpetic neuralgia is complication of shingles.