postnasal drip from a cold is best treated with first-generation antihistamines (such as diphenhydramine chlorpheniramine or brompheniramine) and pseudoephedrine. this combination has been shown to effectively dry up the drip and relieve the cough and sore throat that can occur from the drip. you should talk to your pharmacist to review all your symptoms and find the right over-the-counter products to treat them all.
what over-the-counter medicine can you take for postnasal drip?