Urticaria, also known as rubella, is an edema reaction that occurs due to abnormal expansion of capillaries located in the skin or mucous membranes, which leads to increased permeability. It usually occurs locally in the body. Urticaria usually resolves on its own within two to four hours after the rash appears, but it recurs and is a very common skin disease. Among them, contact urticaria is a highly contagious disease that requires special attention. It can be infected by contact with the patient's body.
1. What is the cause of contact urticaria? The pathogenic factors of
urticaria are very complicated, and there is no scientific and accurate answer in the medical field, especially contact urticaria. Generally speaking, common pathogenic factors include food allergies, infections, and taking certain disease-causing drugs. Some patients also develop the disease due to physical stimulation, such as light and cold. In addition, insect bites may also cause urticaria disease, because insects are good hosts for pathogenic bacteria and viruses.
2. How to treat contact urticaria?
1. Generally, because the pathogenic factors are different, the treatment methods are slightly different, and the treatment effects are also different. The principle of treatment is to find the cause of the disease and avoid contact. If it is caused by a food allergy, find the allergic food and avoid eating it later. If you are allergic to drugs, stop the drug immediately.
2. Avoid predisposing factors. For example, patients with cold urticaria should keep warm and avoid catching cold, and patients with contact urticaria should be isolated, and try to reduce the chance of contact with others, so as not to pass on to others and make their own illness worse.
3. If none of the above treatments work, then drug treatment should be considered. Commonly used drugs are generally antihistamines, receptor antagonists and doxepin. If the condition is particularly serious, intramuscular injection of glucocorticoid can be considered. For patients with recurrent episodes, consider using immunosuppressive agents.
3. What are the precautions for contact urticaria?
1. Patients with contact urticaria must be isolated first, because it is highly contagious and contact with limbs may cause infection. Therefore, it is necessary to minimize contact in daily care.
2. The main thing for patients with urticaria is daily care. The living environment must be clean, the humidity and temperature must be appropriate, and usually drink plenty of water to promote the excretion of possible allergy-promoting substances. It is forbidden to scratch the infected area to prevent skin damage. ,Worse. If the patient is a young child, remember to wear gloves when sleeping at night to prevent scratching the skin. In addition, patients should try not to use soap and shower gel when bathing, so as not to irritate the skin, and try not to wear rough clothes.
3. Dietary regulation is also very important for patients with urticaria. Eat more light and nutritious foods, and eat more fruits and vegetables. If the patient still has abdominal pain, avoid eating rough foods. Patients with diarrhea should not eat foods with high fiber content, such as celery, bananas, etc.
4. Is contact urticaria contagious?
Contact urticaria is highly contagious. Once infected, it must be isolated and not contact others at will. In life, after contact with such patients, you should also check your body in time and pay close attention to health trends.
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