Small dots on the body also feel particularly itchy often considered to be the symptoms of skin allergies, may also be dermatitis, eczema and other skin diseases, need to be specifically analyzed. 1. skin allergy: this symptom is the first consideration of the disease is skin allergies, common allergies caused by many things such as fish, shrimp, beef and mutton, cephalosporin, penicillin, etc., the patient in contact with allergens will be small red dots all over the body, accompanied by a strong sense of itching, to do the allergens test, and do the antiallergenic treatment in a timely manner. 2. Dermatitis, eczema: if the body with small dots with itching, at the same time there is a clear tendency to ooze, need to consider suffering from dermatitis, eczema, it is recommended to the hospital using anti-allergy drugs such as cetirizine tablets for treatment. Some patients may experience gastrointestinal reactions, skin irritation and other discomforts, and it is contraindicated for pregnant and lactating women. Small dots with itching may also be mosquito bites or caused by liver disease and other factors, patients with the above symptoms, it is recommended to go to the hospital in a timely manner, after clarification of the cause of the disease under the guidance of the doctor to carry out regular treatment as soon as possible.