Allergy is a very common skin disease, which is usually caused by some tiny substances. The main symptoms are redness, swelling and a little itching. It usually grows on the body and can be transmitted to others. It grows red and has spots on it. Whether it is women, men, children or adults, they may be infected with this skin disease. No certain people will be infected with this terrible disease. An abnormal or pathological reaction to certain substances (such as bacteria, pollen, food or drugs), situations (such as mental or emotional excitement or exposure to sunlight) or physical conditions (such as cold). When the human body's resistance to antigen invasion is too strong, an allergic reaction will occur under the stimulation of allergens. Causes: 〈1〉 Bacteria, pathogens and intestinal parasites, etc.; 〈2〉Food; 〈3〉Drugs, sulfa antipyretic analgesics, etc.; 〈4〉Others (insect bites, plant pollen, vaccinations, etc.). Clinical manifestations: more common in children and adolescents. There is often a history of upper respiratory tract infection 1-3 weeks before the onset of the disease, as well as general discomfort, fatigue, fever and loss of appetite, followed by skin purpura, accompanied by joint pain, abdominal pain, hematuria or black stools, etc. These symptoms are often easily misdiagnosed. type: 〈1〉 The cutaneous type is the most common, as the dermal capillaries and arterioles present aseptic, necrotizing vasculitis. Most cases present with skin petechiae, which may be accompanied by mild itching, small urticaria or papules. Petechiae are common on the limbs and buttocks, especially on the inner side of the lower limbs. 〈2〉 The abdominal type is mainly manifested by abdominal pain, which is often paroxysmal colic or persistent dull pain, and may be accompanied by vomiting, diarrhea, and blood in the stool. 〈3〉 The joint type is characterized by joint swelling and pain, which often occurs in the knee, ankle, elbow, wrist and other joints. 〈4〉The renal type is more common in children. Proteinuria and hematuria usually appear one week after purpura, sometimes accompanied by edema, and may develop into chronic nephritis. 〈5〉Mixed and special types Special types may have convulsions, paralysis and coma. Allergy is a very uncomfortable disease. It will cause your best friends who used to be with you to stay away from you because of your allergy. They are afraid that you will spread this skin disease to others and make them suffer with you. Try not to let children touch small objects to prevent them from touching allergens and contracting this common skin disease. |
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