Poisonous bumps is a common name for skin pimples generally caused by external causative factors, and treatment requires physical therapy, medication, etc. depending on the cause. External factors caused by skin pimples blistering diseases are mainly a variety of warts, herpes, papular urticaria, etc., the treatment method is different. 1. Wart diseases include flat warts, infectious molluscum contagiosum, condyloma acuminatum, common warts and so on. Treatment can take laser, electric cauterization, freezing and other physical therapy, but also can be used externally imiquimod cream, onychomycosis tincture treatment. 2. Herpes is mainly herpes simplex and herpes zoster, the treatment is based on antiviral therapy, oral acyclovir tablets, famciclovir tablets, or external use of penciclovir cream, interferon spray treatment. 3. Pemphigus urticaria is caused by insect bites, and can be treated with topical zinc oxide ointment, salbutamol ointment and other medications. Patients with mild papular urticaria can be treated with floral water and anemone, while severe cases can be treated with glucocorticoid ointment such as mometasone furoate cream. It is recommended that the patient consult a doctor in time to clarify the diagnosis and treatment.