Pimples on the waist consider may be herpes zoster, eczema, as follows: 1. Herpes zoster: due to decreased immunity of the body, varicella-zoster virus infection, can appear unilaterally on the waist, accompanied by peripheral nerve radiating pain, burning pain or electric shock pain, the patient can take oral vaxilovir hydrochloride granules. If the effect is not good after a few days and there is still a large area of new rash, patients need to immediately sedative acyclovir injection, with oral mecobalamin capsules to nourish the nerves, and oral gabapentin capsules to relieve pain; 2. Eczema: mainly in the bilateral lumbar area is symmetrically distributed, the boundary is unclear, patients can take oral levocetirizine hydrochloride oral solution, topical treatment with mometasone furoate ointment application.