Cold and flu nose breathing hot and dry pain is considered to be due to inflammation, lack of moisture and so on. 1. Inflammation: colds are caused by viral infections. The virus can cause nasal mucosa congestion, edema and other inflammatory reactions, which can cause dryness and pain inside the nose. Especially when secondary bacterial infection, the redness and swelling of the nasal mucosa worsens, and the dryness and pain of the nose can also worsen. For treatment, you can use drugs such as compound aminophenolamine granules to relieve symptoms, and if secondary bacterial infection, you can use antibiotics such as amoxicillin to treat it. 2. Insufficient water: colds, such as fever symptoms, can cause a large amount of water loss, resulting in a lack of water in the body, at this time will also lead to the nasal mucosa dry, appearing inside the nose dry and painful situation. At this time, you need to pay attention to drink more water, or eat more fresh vegetables and fruits, supplemental water, promote the recovery of the body. In addition, the nose breathing hot dry pain can also be seen in other causes, such as the symptoms do not relieve or aggravate, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor, improve the examination, to clarify the cause of the disease and comply with the doctor’s instructions for treatment.