Topical antibiotics such as benzoin, applied directly to the skin, help stop infection of the blisters. Over-the-counter pain medicines and anti-viral medicines may also be prescribed by a doctor, according to WebMD.
Painkillers and anti-inflammatory drugs such as ibuprofen are useful internally to treat shingles. Anti-viral drugs such as acyclovir may stop the progression of the rash. Benzoin protects the skin when applied to unbroken blisters. If infection occurs, oral antibiotics may be necessary. Keep the skin clean, dry and exposed to air as much as possible, and do not scratch. Ice, when applied for 10-minute intervals, may also help, according to WebMD.