You can take honey—by itself or mixed in warm tea—to reduce coughs. Steam inhalation or using saline nasal drops can help relieve nasal and sinus congestion. You can also take antihistamines, like diphenhydramine, and decongestants, like phenylephrine, to relieve allergy-like symptoms of cold like runny nose, sneezing, watery eyes, coughing and congestion. Medicines containing diphenhydramine and phenylephrine, Coldarin All in 1, can help you relieve these symptoms of cold, too. Coldarin All in 1 also contains ingredients that treat fever and body aches associated with cold. >> Read more about Coldarin All in 1