Primary lesions are of the following forms-macules (or patches), papules (or plaques), nodules, tumors, wheals, vesicles, bullae, and pustules.

• 原发性损害有如下几种类型：斑疹（或斑片）、丘疹（或斑块）、结节、肿块、风团、水疱、大疱和脓疱。