Symptoms of allergies

summary

Allergy is the most urgent event in clinical immunology. Now it is described as a group of severe clinical symptoms, including immune or non immune mechanisms, often sudden, involving multiple target organs. It is a clinical syndrome with multiple inducers and different pathogenic mechanisms. It is common in children. The total prevalence of allergy in normal population ranges from 10% to 60%. The incidence rate of allergy is basically similar, but some reports think that women are slightly higher than men. In other statistics, the incidence of male was higher than that of female, accounting for 51% of female and 49% of male. Symptoms of allergies? Let's talk about it

Symptoms of allergies

A vascular allergic bleeding disease. The body has allergic reaction to some substances, causing extensive small vasculitis, increasing the permeability and fragility of small arteries and capillaries, accompanied by bleeding and edema. Children and teenagers are more common. One to three weeks before the onset, there is often a history of upper respiratory tract infection, and general discomfort, fatigue, fever and loss of appetite, followed by skin purpura, accompanied by joint pain, abdominal pain, hematuria or melena, etc. these symptoms are often misdiagnosed.

Some drugs can cause skin allergic reactions, mainly manifested as skin erythema, purpura, blisters and lax epidermis, pruritus and pain, sometimes accompanied by low fever. After the rash subsided, there was no pigmentation. Western medicine allergy is more common, such as penicillin, sulfonamides (such as SMZ), analgin allergy. Some components of traditional Chinese medicine can also be used as allergens. According to reports, herbs that can cause allergic reactions include Houttuynia cordata Thunb, Brucea javanica, trichosanthin, borneol, rhubarb, etc. Chinese patent medicines such as Liushen pills, Niuhuang Jiedu Tablets, compound angelica injection, Danshen Shuxin tablets, etc. The drug must be stopped immediately after drug eruption.

Skin contact with certain substances, local erythema, edema, itching pain, severe cases can have blisters, peeling and other phenomena. The substances that can cause skin contact dermatitis include jewelry, watch chain, mirror frame, sandals, chemical fiber cloth, external medicine, chemicals, cosmetics, etc. Once the above symptoms are found, immediately look for the items that cause allergy and stop contact. Most people who are prone to contact dermatitis belong to allergic groups.

matters needing attention

It is not suitable to take a certain antiallergic drug in a long-term and large dose, which is easy to cause drug resistance. It is generally appropriate to take it for 2-3 months, otherwise the efficacy will decline, but it will not produce dependence. For example, some antiallergic drugs will stimulate the satiety nerve of the body, produce obesity effect, and recover after a few days of withdrawal. Take different kinds of anti allergic drugs in turn.