9-month-old baby with a lot of small red dots on the body, may be long eczema, allergic dermatitis, measles or rubella, early childhood emergency rash, etc., need timely examination to clarify the cause of the disease, corresponding drug treatment and behavior regulation. Common conditions and treatments 1, eczema or allergic dermatitis: infant eczema is a common inflammatory skin disease that occurs in infancy, often caused by allergies, such as eating allergic foods or contact with certain special materials. Lesions are commonly found on the cheeks, but can also appear on the scalp, trunk, limbs and other parts of the body, accompanied by intense itching. Mild eczema mainly pay attention to daily care, apply ointment, emollient milk, etc. in the lesion area, for moderate and severe eczema need to use medication, such as glucocorticoids, calcium-regulated neurophosphatase inhibitors, etc., drugs should be applied under the guidance of a doctor; 2, measles: acute respiratory infections caused by measles virus, the baby not only has a fever, cough, cough and other symptoms, the body will generally also appear light red spots Papules. Treatment is based on symptomatic treatment, treatment of high fever, according to the baby’s situation, the use of antipyretic drugs, such as acetaminophen, ibuprofen, naproxen. If the baby has a frequent, violent cough, you can use cough suppressants, or nebulizer treatment; 3. Rubella: an acute respiratory infection caused by the rubella virus, babies usually start to develop a rash 1-2 days after the onset of fever and can spread throughout the body in about 24 hours. Treatment is more consistent with the treatment of measles, the need to improve immunity, symptomatic supportive treatment; 4, early childhood emergency rash: generally 2-3 days will subside, do not need to deal with; 5, other: there may be a reduction in platelets or coagulation abnormalities resulting in bleeding spots, if the rash does not fade, the need to improve the blood routine, coagulation elephant examination in a timely manner. Attention should be paid to increasing and decreasing the baby’s clothing and avoiding taking the baby into crowded and pollen concentrated areas during the high allergy period.