This combination of cough, cold, throat burning, pain while swallowing, runny nose, and sensitivity to smells usually happens in a viral upper respiratory infection or strong allergic irritation of the nose and throat, and sometimes post-nasal drip makes the throat more inflamed, which can also trigger nausea or vomiting sensation with strong odours. It feels intense, but in most cases, it improves gradually over a few days as the infection or irritation settles. Right now, the focus should be on calming the throat and reducing nasal congestion. Warm fluids, steam inhalation, and proper hydration can help loosen mucus and reduce irritation. Avoid cold drinks, spicy foods, smoke, and strong perfumes since they can worsen throat burning and nausea. Resting the voice and keeping the head slightly elevated while sleeping can reduce post-nasal drip and coughing at night. If fever, severe throat pain, or swallowing difficulty increase, or if symptoms do not start improving within a few days, a medical review is important to rule out bacterial infection or sinus involvement. Supportive care usually helps most in the early phase, and recovery is generally gradual but steady.