What can be done about a morning cough dr say it's post nasal drip?

Chronic rhinitis: A very common condition. One should maximize treatment with antihistamines(pill ie Claritin or nasal spray) and/or nasal steroids. I tell my patients to irrigate nasal passages with saline on a regular basis. One would worry about environmental allergies, so a referral to an allergist may be needed.

Treatment...: There are treatments for post-nasal drip including prescription nasal sprays. Treatment does depend on the etiology of the post-nasal drip (ex. Allergies, post-cold, etc.) your doctor can treat this depending on the cause. Sometimes, it is a self-limiting process so it may resolve on its own in a few days. See your doctor if it doesn't resolve in a few days.