Antibiotics are usually taken after meals. Antibiotics are also commonly used clinical anti-infective drugs, mainly for the treatment of acute and chronic infectious diseases, there are many varieties of clinical drugs, some of the antibiotics will cause irritation to the gastrointestinal tract, so it is recommended to take after meals to reduce the stimulation of the drug on the gastrointestinal tract. In addition, the use of medication should follow the doctor’s instructions, in accordance with the course of use, not be able to relieve the symptoms of blindly stop using medication, otherwise it may cause the disease to recur. The body has infectious diseases should go to the hospital in time for examination, to clarify the specific pathogenic bacteria infection, but also can do a drug sensitivity test, according to the drug sensitivity test to choose sensitive antibiotic treatment, to avoid blind self-medication and abuse of drugs.