Pimples on the body and swollen lips may be related to urticaria, angioedema and other diseases. 1. Urticaria: a vascular allergic disease, the causative factors are divided into two categories: endogenous and exogenous, of which the exogenous include food, drugs, contact with substances. Endogenous factors include mental factors, infections, and some underlying diseases, which are mainly manifested as skin and mucous membrane edema, generalized red air masses, itching and so on. 2. Angioedema: also known as giant urticaria, lesions occur in some loose parts of the tissue, such as eyelids, lips, tongue and external genitalia. Allergies, infections and physical stimuli are the main causes of angioedema. For recurring swelling of the mouth, it is important to consult a doctor to determine the cause of the condition and take medication under the doctor’s supervision.