The reason why urticaria occurs is due to a temporary increase in vascular permeability caused by intrinsic and extrinsic stimulation of the patient, which results in limited edema. Many patients are not sure what kind of stimulus they are receiving, but the more common triggering factors in clinical practice are high protein foods such as seafood and pupae, or exposure to fungi, parasites, pollen, animal hair, mold, dust mites, or cold stimulation, as well as mental and genetic factors. The most common treatment for urticaria is oral antihistamines, commonly used drugs such as loratadine, cetirizine, paracetamol, and ibastine tablets, all of which are more commonly used and effective. If the symptoms are more severe, you can apply topical Furamyl lotion and Tretinoin ointment.