Adverse drug reactions (ADRs) are divided into predictable (related to the pharmacological effects of the drug in normal people) and unforeseen (related to the immune response of the drug). individual and sometimes due to genetic differences in susceptible patients). Drug allergy is an unpredictable and immune-mediated type of reaction.

Drug allergy is a very common complication during treatment, with diverse clinical manifestations, including lesions on the skin, mucous membranes and internal organs. All drugs can cause allergies, but antibiotics are the most common.

Drug allergy is a very common complication during treatment, with diverse clinical manifestations, including lesions on the skin, mucous membranes and internal organs. All drugs can cause allergic reactions, however, the most common drug allergies are antibiotics, anticonvulsants, non-steroidal anti-inflammatory drugs and gout medications, which have the highest incidence of causing allergic reactions.

Signs of drug allergy are very rich and diverse in the organs and tissues of the body. Signs of allergy occur in mild, severe and severe forms. There are many symptoms of drug allergy that do not have obvious manifestations that the patient cannot know, such as vestibular disorders, kidney failure, loss of blood cells after taking the drug...

Antibiotics are the most commonly prescribed medications in children and are also the ones with the most adverse reactions, with about 25% of children having allergic reactions to antibiotics. Although these illnesses are usually not severe enough to require hospitalization,

Expectorants are drugs that thin mucus, reducing the thickness of phlegm and mucus, making it easier to cough up and expel mucus from the respiratory tract. However, because expectorants can cause some adverse reactions, special caution should be exercised when using them, especially with children.

Lyell's syndrome, also known as toxic epidermal necrolysis, is a potentially life-threatening dermatologic disorder characterized by widespread erythema, necrosis, and desquamation of the epidermis and mucous membranes, resulting in the epidermis separating from the dermis at the mucocutaneous junction.