Why Is There a Patch of Redness on My Body?

Redness on the body is often thought to be related to common skin allergies or initial urticaria-like issues. Both ordinary skin allergies and urticaria-like lesions can easily cause varying degrees of itching, redness, or bumps on the skin when they occur. In such cases, it is important to apply topical calamine lotion-like medications while also taking antihistamines to help alleviate symptoms as quickly as possible.

If these red patches can naturally disappear within a short period of time and are accompanied by varying degrees of itching, the most likely diagnosis is urticaria, which can be related to food, medication, the environment, and autoimmune factors.

Oral antihistamines, such as loratadine or cetirizine tablets, can be prescribed. If severe chest tightness or difficulty breathing occurs, immediate medical attention should be sought to avoid any danger.

Allergic reactions can be triggered by exposure to certain foods that commonly cause allergies, such as fish, shrimp, and mushrooms, or by contact with allergens like pollen.

First, attention should be paid to anti-allergic treatment. Commonly used anti-allergic medications include chlorpheniramine, astemizole, or calcium gluconate. It is also important to avoid contact with these allergens as much as possible. Additionally, it is recommended to rest appropriately, maintain a light diet, eat plenty of fresh vegetables and fruits, avoid spicy and stimulating foods, abstain from alcohol and smoking, maintain a regular lifestyle, and avoid staying up late.