Dexamethasone is a glucocorticoid that suppresses inflammation and the immune response. It has numerous side effects involving many body systems if used long-term or improperly. It is indicated for chronic inflammatory disorders, allergies, hematologic diseases, neoplasms, and autoimmune diseases. Nursing care for dexamethasone involves frequent monitoring for side effects involving fluid balance, electrolytes, skin, respiratory status, and psychological changes. Patients require education about proper administration and reporting any adverse effects.