Urticaria symptoms?

summary

Urticaria is a common skin disease, caused by a variety of factors, skin mucosal blood vessels temporary inflammatory congestion and a large number of liquid exudation, resulting in local skin edema damage, often can not find the cause of the disease, patients often from time to time in the body, face or limbs from a piece of red and itchy rash, the more itching, the more itching, the more swelling. The number of episodes ranged from several times a day to once a few days. Urticaria symptoms? Let's talk about it

Urticaria symptoms?

The occurrence of wheal and erythema after skin contact with some allergens can be divided into three types: immune, non immune and unknown mechanism. Non immune contact urticaria is caused by primary urticaria causing substances, which does not need sensitization, and can occur in almost all contact persons. Most cases of immune contact urticaria are IgE mediated anaphylaxis. The patients with unknown mechanism have both immune and non immune manifestations.

Pigmented urticaria: it usually occurs in 3-9 months after birth, but it also occurs at birth. The initial lesion is usually a temporary rubella mass, and then often relapses and disappears in the original place. Eventually become persistent chloasma or uneven pigmented nodules on the surface, a few patients in the lesions can also appear blisters, wheezes appear after scratching.

Erythema, pruritus and wheezes occurred at the injection site or in the whole body, as well as annular erythema and nodular erythema. In addition, there may be fever, lymphadenopathy, myalgia, arthralgia, purplish, hypocompleminemia and other systemic symptoms, known as seropathy.

matters needing attention

The patients were excluded by the method of eliminating eating. Patients can eat the following foods for 3 weeks: rice, vegetables, carrots, potatoes, pumpkins, rapeseed oil, sugar, salt, and all kinds of green tea, and then add one kind of food every day. After eating the food, observe whether acute urticaria occurs for several days. If acute urticaria occurs, it indicates that the patient may be allergic to the food added, We should stop eating this kind of food in time;