What are the symptoms of drug allergy

summary

Drug overdose refers to the reaction of organs and tissues caused by sensitive drugs entering the human body through various ways, also known as drug reaction. About 1 / 3-1 / 4 of the side effects of drugs involve the skin, so a new name of cutineous drug reactions has been proposed. Drug eruption or dermatitis medicamentosa are the most prominent drug reactions in skin and mucous membrane.

What are the symptoms of drug allergy

There is a certain incubation period, generally 4-20 days, with an average of 7-8 days. If the patient has been sensitized, the same drug is used again, usually within 24 hours, with an average of 7-8 hours, the shortest is only a few minutes, and the later is not more than 72 hours;

Most of the onset of sudden, can first have chills, discomfort, fever and other precursor symptoms; In addition to the fixed erythema, the rash was generally distributed symmetrically; It is often accompanied by systemic reactions of different severity, mild may have no obvious, severe may have headache, chills, high fever, etc;

Severe erythema multiforme (Stevens johnso syndrome) is a severe bullous erythema multiforme. In addition to skin damage, eye, mouth, external genitalia and other serious mucosal damage, with obvious chylosis, exudation, often accompanied by chills, high fever, bronchitis, pneumonia, pleural effusion and kidney damage, eye damage can lead to blindness, suffering from this type of drug eruption is more common in children, However, it must be pointed out that this syndrome is sometimes not caused by drugs.

matters needing attention

Because the incidence rate of drug reaction is high and the harm is serious, serious patients can cause death. Therefore, it is important to pay attention to prevention. For example, doctors do not give drugs randomly, and patients do not abuse drugs. 1. Before medication, first make a clear diagnosis, do not use a variety of drugs to siege before the condition is clear, thinking that there is always a drug that will produce effect, so it is easy to have unnecessary drug reactions. 2. The ingredients, performance, indications, contraindications, side effects and incompatibility of the drugs should be fully mastered, so as to avoid abuse, misuse and multiple use of drugs.