Hydrocortisone Injection 100MG is a sterile, injectable corticosteroid used to treat severe allergic reactions, inflammation, and adrenal insufficiency. This medication works by mimicking the effects of cortisol, a natural hormone produced by the adrenal glands, to reduce swelling, pain, and immune system overactivity. Administered by healthcare professionals, it provides rapid relief for conditions like anaphylaxis, arthritis flare-ups, and asthma exacerbations. Always use under medical supervision for optimal safety and efficacy.