Cough and headache for a couple of days are commonly caused by viral infection, throat irritation, flu-like illness, allergy, or sinus congestion. Since the fever improved after taking Paracetamol, the infection may still be in an early stage and could improve gradually with rest and supportive care. A headache may occur because of fever, dehydration, sinus pressure, or continuous coughing. Warm fluids, steam inhalation, saltwater gargles, and proper hydration may help reduce throat irritation and congestion naturally. Resting properly and avoiding cold drinks, smoke, dust, and late-night waking may also support faster recovery. Depending on the type of cough, doctors sometimes advise cough syrups, antihistamines, or other supportive medicines, but the right treatment depends on whether the cough is dry, allergic, or associated with mucus. Avoid taking multiple cold medicines together without proper guidance because some combinations may increase drowsiness or stomach irritation. Eating light, nutritious meals and maintaining hydration are also important during illness. Consult a doctor if fever returns, breathing difficulty develops, chest pain occurs, or the cough and headache continue worsening after several more days.