All types of topical lotions and creams that are soothing to the skin can be applied on a shingles rash, according to EverydayHealth. These include petroleum jelly, calamine lotion and hydrocortisone creams.
A shower or bath with cool water can be helpful. If there is a lot of irritation, a cool compress using a clean wash cloth or clean paper towels soaked in cool water may offer help. It is important to avoid sunlight to help prevent scarring and to resist scratching a shingles rash, as explained by EverydayHealth. People with shingles can use Burow's solution to help clean crusts, dry the skin and reduce oozing, according to WedMD.