Hi, The shingles will have to be treated with acyclovir. A painkiller can be added if you feel the pain is severe. Acyclovir is a peculiar medication because it causes your serum uric acid levels to rise which in turn can precipitate a kidney stone which in turn leads to aggravation of UTI due to urine stagnation. But since the treatment options are restricted we can to continue with acyclovir. You can consume potassium citrate salts dissolved in water that are prescribed in UTI s to reduce your symptoms. I know it sounds bad but sometimes in medicine your agony peaks before you get better. So please hold on. Thank you for your query