The doctor prescribed an ointment to relieve the pain caused by his shingles.

shingles 是名词，指"带状疱疹"，这是一种由水痘-带状疱疹病毒引起的疼痛性皮疹。这个词来自拉丁语cingulum（腰带），因为皮疹常呈带状分布。