Prednisone tablets are a hormonal drug that is useful for the treatment of allergic diseases and some autoimmune diseases. Prednisone tablets taken for three days belong to the short term, usually no side effects or relatively small side effects, but it also depends on the individual’s constitution. Some people may have some discomfort, such as immunity decline, metabolic reactions, gastrointestinal symptoms, etc. 1, immunity decline: in the process of taking prednisone tablets, some patients will have immunosuppressive effects, at this time, if the patient is exposed to some viruses, bacteria, etc., may be prone to infection; 2, metabolic reactions: if the dose taken is large, patients may have some metabolic reactions, such as disorders of glucose metabolism. 3, gastrointestinal reactions: after taking prednisone tablets, patients may have symptoms of gastrointestinal discomfort, such as bleeding peptic ulcers, gastrointestinal bleeding, etc.; 4, other: prednisone tablets belong to hormone drugs, long-term use is prone to disorders of fat distribution, resulting in symptoms such as full-moon face, buffalo back, centripetal obesity. Before using the medication, patients are advised to consult their doctors about the method and precautions for using the medication. After taking the medication, if the patient experiences any discomfort, he/she needs to communicate with the doctor immediately to avoid bringing harm to the body.