When a 7-month-old baby has a cough, the common treatment methods are as follows: 1. You can first give your child Chinese anti-inflammatory drugs for treatment, such as Pu Di Lan Anti-inflammatory Oral Liquid or Four Seasons Anti-Viral Combination. 2. If your child’s symptoms do not ease after taking the medicine, it is best to take your child to the hospital for a routine blood test to see if there is an elevation of white blood cells. It is necessary to take antibiotics for treatment. If you are not allergic to penicillin, you can give your child amoxicillin potassium clavulanate for treatment, which is usually taken 3 times a day. 3. If your child’s cough symptoms do not ease, you need to take your child to the hospital for a chest X-ray to see if there is any pneumonia, and if it is pneumonia, you need to be hospitalized for treatment.