What is urticaria? Urticaria, commonly known as rash, is a localized edema reaction caused by the expansion and permeability of small blood vessels in skin and mucosa. It is characterized by pale and flat papules with irregular shape, which will merge into large pieces, with obvious itching and skin lesions all over the body for a long time. It usually subsides within 2 ~ 24 hours, but new rashes will appear repeatedly, and the course of the disease will be delayed for several days to months, which is more common in clinic.
In the season of pollen reproduction, tiny pollen particles will be scattered in the air and fly around with the flow of air, and some of them will be inhaled by people and absorbed by the skin.
Dust dust chronic urticaria is a chronic urticaria reaction of microorganisms living in dust, and it is the most common chronic urticaria. Dust chronic urticaria includes cotton fiber, fur and various fibers, animal fur and so on.
The most typical cosmetic chronic urticaria is essence chronic urticaria, and cosmetics containing alcohol such as make-up water will also have a certain * * * effect on the skin. Others, such as biochemical preservatives and fruit acids, have different effects on different skin.
Urticaria is a common skin disease symptom in our life. Urticaria will itch all over the body and have erythema, which can occur or subside quickly, affecting people's work, life and mood health.
Common foods are seafood, mangoes and nuts, which can cause chronic urticaria.
Drugs such as penicillin and sulfonamides may cause chronic urticaria.
The growth of age and the imbalance of immunity are the important causes of chronic urticaria.
Pets Domestic pets have chronic urticaria. This kind of chronic urticaria caused by pets is mainly due to the fact that the substances on cats and dogs are scattered into the air, which causes chronic urticaria after human contact.
Urticaria is a common skin disease symptom in our life. Urticaria will itch all over the body and have erythema, which can occur or subside quickly, affecting people's work, life and mood health.
Seasonal changes Due to various environmental factors, bacterial spores and pollen scattered in the air will release a large number of compounds that the human body can contact-histamine, causing chronic urticaria.
The temperature changes from cold to hot, which makes sensitive people vulnerable to chronic urticaria.
Urticaria can induce other diseases, and if accompanied by gastrointestinal symptoms, it can cause nausea, vomiting, diarrhea and abdominal pain.
Urticaria affects life. If it is not cured in time, it can be delayed for months or even years. Itching is aggravated in the morning or before going to bed, which affects people's normal life and psychological state.
Urticaria is a common skin disease symptom in our life. Urticaria will itch all over the body and have erythema, which can occur or subside quickly, affecting people's work, life and mood health.
Urticaria that endangers life and health, if it occurs in the respiratory tract such as larynx and bronchus, will lead to laryngeal edema, throat obstruction, chest tightness, dyspnea, and even suffocation and death in severe cases. Severe cases are accompanied by anaphylactic shock symptoms such as palpitation, irritability, nausea and vomiting, and even blood pressure drops, which endangers life safety.