Patients with allergic cough can eat non-allergic foods. Clinical foods that can cause allergies include seafood, beef, chicken, eggs, milk, etc. Allergen testing can be perfected and avoided according to the test results. It is also recommended to eat easy-to-digest foods, such as noodles, pasta, noodle soup, and also fresh vegetables and fruits, such as apples, pears, oranges, etc., which not only provide rich minerals and vitamins to improve the patient’s immunity, but also the above foods have the effect of moistening the lungs and relieving cough. If the patient has hypoproteinemia, it is recommended to eat high protein food, such as chicken, beef, lamb, etc. It is also recommended that the patient pay attention to rest and avoid getting cold.