Is acute urticaria contagious?
Apr 20, 2023
Source: Cainiu Health
Dr. Liu Wan
Introduction
In general, plantar warts are not related to sexual activity. Plantar warts are caused by infection with the human papillomavirus (HPV) and typically appear on the sole of one or both feet, especially in the forefoot area, as common warts. Although they result from HPV infection, not all HPV infections are sexually transmitted. Plantar warts may arise due to factors such as foot trauma, excessive sweating, or a weakened immune system.
There are many causes of acute urticaria, but acute urticaria is generally not contagious. The specific analysis is as follows:
The etiology of acute urticaria is relatively complex and may involve food allergies, significant mental stress, or invasion by pathogens. It is considered an acute skin condition caused by vasodilation and increased vascular permeability during onset, and it is typically non-contagious. However, individuals with allergic constitutions are more susceptible, especially during summer and autumn, which are peak seasons for acute urticaria.
Common symptoms during an acute urticaria episode include skin itching and wheals (hives). Skin lesions may resolve within a few hours. In severe cases, symptoms such as difficulty breathing or anaphylactic shock may occur. Once acute urticaria develops, the first step is to avoid contact with allergens, and treatment should be based on the individual's physical condition. Under a doctor’s guidance, antihistamine medications such as loratadine tablets, cetirizine hydrochloride tablets, or levocetirizine hydrochloride tablets can be used. If there is significant localized itching, the area can be cleaned with normal saline, calamine lotion, or iodophor. Scratching with hands is not recommended. In severe cases where patients experience breathing difficulties, immediate medical attention at a hospital is necessary.
