Irritating cough after fever reduction is usually considered to be related to respiratory infectious diseases. Infectious diseases of the respiratory tract, including upper respiratory tract infections, bronchitis, and pneumonia. As viruses, bacteria, mycoplasma, chlamydia and other pathogens infect the respiratory tract, they can cause damage to the mucous membranes of the trachea and bronchi. Some patients may first develop systemic symptoms such as fever, which resolves with an irritating cough with or without coughing up sputum, and the fever may recur. Irritant cough after fever reduction may also be seen in other diseases, it is recommended to consult a doctor to clarify the cause of the disease and to follow the doctor’s instructions for treatment.