Allergic cough with double lung infection requires separate treatment for allergic cough and double lung infection. 1. Allergic cough: also known as allergic cough, is treated with inhaled glucocorticosteroids (e.g. budesonide) and/or oral antihistamines (e.g. loratadine) for more than 4 weeks, and initially with short-term, low-dose oral glucocorticosteroids (e.g. prednisone tablets). These drugs need to be used under the guidance of a doctor. At the same time, it is necessary to get rid of allergens in time, and the prognosis is generally good after timely treatment. 2. Lung infection: anti-infection treatment is the key link in the treatment of pneumonia. It is necessary to carry out sputum culture and other tests in time, and choose sensitive antibacterial drugs after clarifying the type of infection. If it is bacterial infection, amoxicillin, levofloxacin and cefuroxime can be used; if it is viral pneumonia, oseltamivir and ribavirin can be used. At the same time, dynamic observation is carried out, and symptomatic treatment is taken for symptoms such as cough. Patients with allergic cough and double lung infection should go to the hospital in time and receive standardized treatment under the guidance of the doctor. All of the above medications should be used under the guidance of a doctor, avoid self-medication.