Question: what is the best medicine for a lingering cough?
Answer: Antihistamines, corticosteroids and decongestants. These drugs are standard treatment for allergies and postnasal drip. Inhaled asthma drugs. The most effective treatments for asthma-related cough are corticosteroids and bronchodilators, which reduce inflammation and open up your airways. Antibiotics. ...  Acid blockers.