A continuous cough that is not improving can occur due to viral infection, allergy, asthma, acid reflux, smoking, sinus drainage, throat irritation, or chest infection. The type of cough is important because dry cough and mucus-producing cough often need different treatment approaches. Some people also develop persistent coughing after a cold because the airways remain sensitive for several weeks. Relief usually depends on identifying the cause of the cough. Doctors may recommend cough syrups, antihistamines, steam inhalation, or inhalers if allergy or airway irritation is contributing. Warm fluids, avoiding smoke and dust, and maintaining hydration may also help soothe the throat and reduce coughing episodes. If the cough is associated with acidity, late-night heavy meals and spicy foods may worsen symptoms. Persistent cough lasting many weeks, fever, weight loss, wheezing, chest pain, breathlessness, or blood in sputum should be evaluated carefully because an ongoing cough may sometimes require chest examination or further testing.