Gammaglobulin has a therapeutic effect on relieving diarrhea in chronic colitis. Some studies have shown that intravenous infusion of 20% gammaglobulin 50 ml / times, twice a week drip, mild chronic colitis patients treated for one week, severe chronic colitis patients treated for two weeks, the patient’s stool formation, diarrhea, the number of times to reduce the diarrhea, diarrhea symptoms have been significantly improved. Therefore, gammaglobulin has a certain therapeutic effect on relieving diarrhea in chronic colitis. Gammaglobulin can be used to treat congenital gammaglobulin deficiency, immunodeficiency diseases, asthma and other diseases. It should be noted that gammaglobulin therapy is contraindicated in people with a history of immunoglobulins or other severe allergies, and selective lgA deficiency to lgA antibodies; there may be transient headache, nausea, and panic during the infusion, among other adverse reactions. Patients diagnosed with colitis should actively cooperate with the doctor’s treatment, under the guidance of the doctor’s medication, is not recommended to blindly use their own medication.