Frequent allergic skin bumps can be a symptom caused by chronic hives. Chronic urticaria is a type of hives that lasts for more than 6 weeks. When the body of a chronic urticaria patient is exposed to external stimuli, an allergic reaction occurs, and the cells release histamine-like substances, which leads to dilation of the capillaries, increased permeability of blood vessels, and the emergence of edematous erythema (red bumps). Patients with frequent skin allergies should pay attention to finding and avoiding contact with allergens, and patients with severe symptoms can use antihistamines such as cetirizine and loratadine under the guidance of a doctor. Antihistamines are ineffective in patients, and immunosuppressants such as tacrolimus can be used as appropriate. It should be noted that all of the above drugs should be used under the guidance of a doctor. Patients with frequent skin allergies and bumps should go to the hospital in time, and under the guidance of the doctor to carry out regular treatment.