Why do you get urticaria?

In daily life, we sometimes see that wheals are easily generated on the surface of our skin, which we should pay attention to. Because these may cause the appearance of urticaria, the disease progresses due to the patient's neglect. So why do we get urticaria in daily life? These may be caused by food infection or viral influence.

So how should we prevent urticaria in our daily life? In addition to our diet, we should also pay attention to the body's immunity. Only by paying more attention to these in daily life can we prevent the occurrence of good diseases. Next, let us learn more about the causes of urticaria through this article.

1. Skin scratch urticaria/artificial urticaria

The patient's physiological response to weak external mechanical stimulation is enhanced, causing wheals on the skin. After scratching, or when wearing tight belts or garters, the patient will develop local wheals and itching.

2. Delayed dermatographism

Skin scratches will cause wheals and erythema 6 to 8 hours after stimulation, and the wheals will last for 24 to 48 hours. There is more than one delayed skin lesion, and small segments or dots are formed along the scratch. The lesions are deeper or wider, and even expand to both sides to form lumps. Local fever and tenderness.

3. Delayed pressure urticaria

The rash develops 4 to 6 hours after local skin pressure is applied and usually lasts 8 to 12 hours. Symptoms include localized, deep, painful swelling, which may be accompanied by chills, fever, headache, joint pain, malaise, and a mild increase in white blood cell count. Large local swelling resembles angioedema and is prone to occur on the palms, soles, and buttocks. There may be a 24-hour incubation period before the lesions occur.

After reading this article, we can learn about the relevant causes of urticaria and some of the main classifications of urticaria. These can help us distinguish the classification of urticaria in daily life. If you find any adverse symptoms in your daily life, you should seek medical attention in time and listen to the doctor's advice.