What do you suggest if my child is 13 years old she has always had post nasal drip.?

Allergy treatment: Chronic post nasal drip is often the result of uncontrolled allergies. Symptoms may be improved with oral antihistamines or nasal steroid sprays. If symptoms persist despite these treatments, allergy testing may be helpful. This will help you learn what to avoid, and be useful in determining if allergy shots are warranted b

Nasal antihistamines: In addition to nasal steroids and oral antihistamines, one might want to try a nasal antihistamine either by itself or combined with the nasal steroids. It is also worthwhile to consult an allergist and find out what might be triggering these symptoms.