What are the symptoms of papular urticaria

Papular urticaria is a relatively common skin disease, which is quite harmful to patients. It often causes wheals on the skin, especially in the case of some irritation reactions, which can cause redness of the skin. It often causes itching and pain in patients, and severe cases can cause reactions in some organs, such as swelling of the throat, which can cause difficulty breathing in patients, etc.

Symptoms of urticaria

Artificial urticaria is also called skin scratching. This type of common urticaria skin scratch test may present a typical triad of symptoms, namely, after scratching the skin with a fingernail or a blunt instrument, a strip of erythema begins to appear, followed by a red halo around it, and finally an obvious strip of wheal occurs.

Symptoms of urticaria

Photogenic urticaria. Its specific manifestation is the rapid appearance of local itchy wheals a few minutes after the skin is exposed to sunlight, ultraviolet rays or infrared rays. At the same time, systemic symptoms such as chills, fatigue, intestinal cramps and even syncope may occur.

Symptoms of urticaria

Cold urticaria. It can be divided into two types: familial and acquired. This type of disease is prone to occur in exposed areas and the itching is milder than other types. When the temperature suddenly drops or when the disease comes into contact with cold substances, it can induce wheals. Therefore, the ice test is positive. That is, place ice on the forearm. After about 2 minutes, wheals may appear on the skin at the contact point.

Symptoms of urticaria

Pressure urticaria. It is easy to occur in areas that are under heavy pressure for a long time, most commonly the buttocks and feet. The lesions appear as localized, deep, painful edema that can last for 8 to 12 hours. During the onset of the disease, fever, chills, joint pain and a slight increase in the total white blood cell count are often present. This type of passive transfer test was negative, so it is not related to allergic reaction.

Symptoms of urticaria

Angioedema is also called giant urticaria. This common type of urticaria was originally called angioedema, which mainly invades the blood vessels deep in the dermis and subcutaneous tissue. It often occurs in loose tissues such as the eyelids, lips, genitals and throat, but the hands, feet, forearms or ankles can sometimes be affected. It usually occurs suddenly at night, and the skin lesions are mostly 1 to 2 huge localized edema masses, but there is no sign of depression when pressed by fingers, and they are often asymmetric. The damage lasts for a long time, and some take 2 to 3 days to subside. If it occurs in the throat, severe cases may cause suffocation or even death, so it deserves attention.