Cold and headache are most often caused by a viral upper respiratory infection, which typically resolves within a few days. The recommended management includes adequate rest, maintaining good hydration, and using steam inhalation to relieve nasal congestion. Saline nasal drops or warm fluids can also provide comfort. For headache or mild fever, only doctor-advised pain or fever relievers should be used. Since antibiotics are not effective against viral infections, self-medication should be avoided. If the symptoms persist beyond a week, worsen, or are accompanied by high fever, sinus pain, or breathing difficulty, it is vital to seek medical evaluation to rule out secondary bacterial infection or other causes.