If you are known to be allergic to salicylic acid, coal tar, or dithranol, please tell your doctor. A 24-hour skin test is advised to be carried out before using Derobin Ointment by applying a small amount of Derobin Ointment to the skin's small patch. If there is no skin irritation or reaction after 24 hours, use Derobin Ointment as advised by your doctor. Do not wrap or cover the treated area with dressings or bandages unless advised by a doctor. Avoid contact of Derobin Ointment with clothes, skin, or hair as it may stain them. Do not apply Derobin Ointment on open wounds, windburned, sunburned, chapped, irritated, or dry skin. Do not spend a long time in direct sunlight as Derobin Ointment can make your skin more sensitive to sunburn. If you have acute or pustular psoriasis, unstable psoriasis, diabetes, kidney, liver, or blood circulation problems, inform your doctor before taking Derobin Ointment.

Derobin Ointment is a combination of three drugs: Dithranol, Salicylic acid, and Coal tar used in the treatment of psoriasis (scales and itchy, dry patches). Dithranol, also known as Anthralin, is an antipsoriatic drug that slows down skin cells' production by inhibiting DNA (genetic material) replication in these cells and stops their growth and multiplication. Thus, it reduces the scaling and thickening of the skin and clears up psoriasis plaques. Salicylic acid and Coal tar are keratolytic agents that break down a protein known as keratin (that forms part of skin structure) and remove or peel off the dead skin cells and soften skin. Also, coal tar possesses anti-inflammatory properties and helps in reducing itching and redness.

Derobin Ointment belongs to a combination medication called dermatological preparations used to treat skin conditions like psoriasis and eczema. It helps to reduce swelling, itching, and redness and remove dead skin cells. Psoriasis is a chronic (long-term) skin condition in which skin cells multiply faster than normal, resulting in white scales and itchy, dry patches. Eczema is an allergic condition of the skin caused due to bacteria, viruses, or fungi. 

Derobin Ointment contains Dithranol (antipsoriatic drug), Salicylic acid (peeling agent and anti-inflammatory), and Coal tar (keratolytic agents). Dithranol, also known as Anthralin, is an antipsoriatic drug that works by slowing down the production of skin cells. Salicylic acid and Coal tar are keratolytic agents that work by breaking down a protein known as keratin (that forms part of skin structure) which removes dead skin cell, peel dead cells of the skin, and softens skin. 

Use Derobin Ointment as instructed by the doctor. Derobin Ointment is only for external use. Avoid contact of Derobin Ointment with normal skin, nose, mouth, eyes, skin folds, or genitals. In case Derobin Ointment comes in contact with these areas accidentally, rinse with water thoroughly. Some people may experience skin irritation or staining of the skin. Most of these side effects of Derobin Ointment do not require medical attention and gradually resolve over time. However, if the side effects persist or worsen, please consult your doctor. 

If you are known to be allergic to Derobin Ointment or any other medicines, please tell your doctor. If you are pregnant or a nursing mother, it is advised to consult a doctor before using Derobin Ointment. Do not use Derobin Ointment in more than recommended doses, on large areas of the body, or for a prolonged time as it may cause adverse effects. Do not wrap or cover the treated area with dressings or bandages unless advised by a doctor. Avoid contact of Derobin Ointment with clothes, skin, or hair as it may stain them. Do not apply Derobin Ointment on open wounds, windburned, sunburned, chapped, irritated, or dry skin. Please do not spend a long time in direct sunlight as it can lead to easy sunburn making. If you have acute or pustular psoriasis, unstable psoriasis, diabetes, kidney, liver, or blood circulation problems, inform your doctor before taking Derobin Ointment.