Tacalsis 4mcg Ointment is a topical medication used in the treatment of psoriasis. It works by lowering the rate at which skin cells grow. This reduces the red, scaly patches on the skin. Tacalsis 4mcg Ointment is for external use only. You should always use it exactly as your doctor has told you. The affected area should be clean and dry before application. You must wash your hands thoroughly before and after applying this medicine. This medicine should be used regularly to get the most benefit from it. Do not use more than you need as it will not clear your condition faster and some side effects may be increased. If your condition goes on for longer than four weeks or gets worse at any time, let your doctor know. You can help this medication work better by keeping the affected areas clean. Use of this medicine may cause burning, itching, and redness of skin at the site of application. Most of these are temporary and usually resolve with time. Consult your doctor if these side effects persist for a longer duration. Avoid direct contact with your eyes. In case of accidental contact, wash your eyes thoroughly with plenty of water. You should stop taking it straight away if you have any signs of an allergic reaction. You should tell your doctor if you have any kidney or liver diseases so that your doctor can prescribe a suitable dose for you. It is recommended to limit or avoid excessive exposure to sunlight or UV light while using this medication. This medicine is not recommended for use in children.