Prednisone is a corticosteroid that reduces inflammation, not an antibiotic. Learn what it treats, its side effects, and why stopping it suddenly is risky. Prednisone is a corticosteroid (cortisone-like medicine or steroid). It works on the immune system to help relieve swelling, redness, itching, and allergic reactions. To summarize, prednisone is a corticosteroid, not an antibiotic. It cannot treat bacterial infections, though it may be prescribed alongside antibiotics to manage inflammation and immune reactions. Prednisone is a corticosteroid, not an antibiotic. It calms inflammation but doesn’t kill bacteria or treat infections. Learn why it’s prescribed and more. Prednisone is a corticosteroid medicine used to decrease inflammation and keep your immune system in check, if it is overactive. Prednisone is used to treat allergic disorders, skin conditions, ulcerative colitis, Crohn’s disease, arthritis, lupus, psoriasis, asthma, chronic obstructive pulmonary disease (COPD) and many more conditions. Prednisone is a corticosteroid that treats various conditions, such as asthma, inflammation responses, and more. It reduces swelling and immune system reactions. Antibiotics, on the other hand, treat bacterial infections. These prescription drugs can usually be taken together safely if they’re prescribed together. Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. [3] It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other corticosteroids. [3] It is taken by mouth. [3] Prednisone is a steroid medication that treats a wide range of health conditions including asthma, allergic reactions, arthritis and inflammatory bowel disease. Overview: Prednisone is used to treat a variety of inflammatory, autoimmune, and hormonal conditions. It works by suppressing the body’s immune response and reducing inflammation. Common side. Prednisone is an FDA approved drug that is part of a medication class called corticosteroids, a grouping of steroid hormones. It is a synthetic glucocorticoid (cortisone-like drug) that works systemically, meaning it works all over your body.