The difference between allergy and urticaria

Generally speaking, the symptoms of allergies and urticaria are not much different. They have certain similarities, such as regional redness and swelling, and itching. However, they still have certain differences, such as the cause of the disease, treatment methods, etc. However, many people do not know the difference between these two diseases, or have not learned about these two diseases. So what is the difference between allergies and urticaria?

Skin allergies generally do not recur, but urticaria is prone to recurrence. The main symptoms of some urticaria are round or spindle-shaped wheal-like lesions with needle-sized to bean-sized blisters on the top, which are scattered or in clusters. Sometimes the disease can cause severe itching, which is very painful for the patient. For the treatment of the disease, patients are advised to use a combination of Chinese and Western medicine. Pay attention to the following in terms of diet: 1. Avoid spicy and fishy foods: try to avoid fish, shrimp, crabs and irritating foods. 2. Avoid fried and greasy foods: such as various fried, grilled, smoked and cured meat products, animal offal, cream cakes, chocolate, etc. 3. Eat a light diet, get more rest, avoid fatigue, and exercise moderately. Eat more fresh fruits and vegetables rich in vitamins. 4. Avoid scratching the affected area vigorously, do not wash with hot water, and do not abuse strong irritating topical medications. 5. Keep the room clean and keep fewer cats, dogs and other pets at home.

Skin allergy mainly refers to when the skin is exposed to various stimuli such as adverse reactions to cosmetics, chemicals, pollen, certain foods, polluted air, etc., causing abnormal phenomena such as redness, itching, peeling and allergic dermatitis. Urticaria is a common skin disease. Various factors cause temporary inflammatory congestion and large amounts of fluid exudation in the blood vessels of the skin and mucous membranes. Causes local edema damage. The cause of the disease is often unknown. Patients often develop red, swollen and itchy rashes on their bodies, faces or limbs from time to time. The more they scratch, the more itchy and swollen they become. The frequency of attacks ranges from several times a day to once every few days.

First of all, allergic purpura is an autoimmune disease. Allergic mechanisms may be involved in the formation of immune complexes, which are deposited in the blood vessel walls, causing increased permeability and subcutaneous bleeding. Purpura then forms, which protrudes above the skin and does not fade when pressed. It is usually dark red in color, and turns brown after fusion. As the condition improves, it will gradually fade, and may be accompanied by urticaria and itching. Urticaria is a completely allergic mechanism. Although the specific allergen is not clear, the main manifestation is a systemic rash that appears in patches, appears and disappears, and is higher than the skin. There is obvious itching. After scratching, the skin will immediately become higher than the skin, and it has a certain degree of wandering. After anti-allergic treatment, there is a significant improvement, but it is not accompanied by abdominal pain, kidney, and joint symptoms.