Fever after four days of cold may be caused by poor immunity, improper medication or other diseases.
1. Poor autoimmunity: patients with poor physical condition and low immunity may have a longer duration of cold and still have fever after four days of cold.
2. Colds: If there is no reasonable or incorrect medication after a cold, bacterial infections will occur, and the fever will recur and other symptoms will be aggravated.
3. Combined with other diseases: If the cold is combined with other diseases, such as pneumonia, tonsillitis, acute pyelonephritis, acute gastroenteritis, etc., the fever will recur if the cold is treated only for the cold and other diseases are not treated.
Therefore, if you have a recurring fever after catching a cold, you should consult a doctor for an examination to identify the specific cause, follow the doctor’s instructions, and use reasonable medication to control the condition as soon as possible to avoid causing other complications.