Tacrolimus 0.1% ointment is a topical immunomodulator used for the management of moderate to severe Atopic Dermatitis, especially in patients who do not respond adequately to conventional therapies like topical corticosteroids. It works by suppressing local immune responses in the skin, thereby reducing inflammation, itching, redness, and flare-ups. Tacrolimus is particularly beneficial for sensitive areas such as the face, neck, and skin folds where long-term steroid use may not be suitable. It also helps in maintaining remission and preventing recurrent episodes of eczema with prolonged use under medical supervision.