Dexamethasone tablets are corticosteroid medications used to reduce inflammation and suppress immune responses in various conditions. They are commonly prescribed for allergies, asthma, arthritis, skin disorders, autoimmune diseases, and certain cancers. Dexamethasone helps relieve swelling, pain, and allergic reactions by decreasing inflammatory activity in the body. It should be used strictly as directed by a healthcare professional, especially during long-term therapy, due to potential side effects such as increased blood sugar, stomach irritation, and lowered immunity.