Tacrolimus ointment is a topical medication that modulates the immune system and treats inflammatory skin conditions like eczema, psoriasis, and vitiligo. Learn how to apply it, what dosage to use, and what side effects to watch out for. Atopic dermatitis, also known as eczema, is a chronic skin condition causing red, itchy, and inflamed patches on the skin, often associated with allergies. Taclus 0.03% Ointment when applied topically suppresses the immune response in the skin, reducing the inflammatory reactions that lead to eczema flare-ups. This way it provides relief and helps improve the quality of life for individuals with atopic dermatitis. Tacrolimus ointment is a topical drug for atopic dermatitis (eczema) that suppresses the immune system and inflammation. Learn about its side effects, dosage, interactions, pregnancy and breastfeeding advice, and more. Find patient medical information for Tacrolimus topical (Protopic) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings