I had a high fever, cold, and dry cough. My fever is gone after four days, but my dry cough persists despite gargling, steam inhalation, and taking Benadryl. What medicine or cough syrup should I take now to relieve this cough?

It is very common for a dry cough to persist for two to three weeks after a viral fever. This is usually due to temporary airway sensitivity, not a serious complication. Since diphenhydramine hasn't worked, you may benefit from an antitussive (cough suppressant) containing dextromethorphan. If there is associated airway irritation, your doctor might suggest a short course of a bronchodilator or a mild inhaled steroid. Please stay hydrated and continue warm fluids. If your cough is accompanied by shortness of breath, chest pain, or lasts more than three weeks, please consult a healthcare professional for a personalised evaluation.