I have been suffering from sinus since 2 years. So, inorder to reduce my headache I applied zandu balm on my forhead. After a year I noticed that part of my forhead turns to black completely. Please can anyone tell me how can I avoid this ?

The use of Zandu balm on your forehead for an extended period has led to a condition called "contact leukoderma" or "chemical leukoderma." What is Contact Leukoderma? Contact leukoderma is a condition where the skin loses its pigmentation due to exposure to certain chemicals or substances. In your case, the prolonged use of Zandu balm has caused the skin on your forehead to lose its pigmentation, resulting in the black discoloration. How to Avoid Further Discoloration? 1. Stop using Zandu balm: Immediately discontinue the use of Zandu balm on the affected area to prevent further discoloration. 2. Consult a dermatologist: Schedule an appointment with a dermatologist to assess the affected area and provide guidance on treatment options. 3. Use sun protection: Avoid exposing the affected area to direct sunlight, as this can worsen the discoloration. Use a broad-spectrum sunscreen with at least SPF 30 when going outdoors. 4. Avoid further irritation: Refrain from using harsh skin care products, exfoliating, or using hot water on the affected area, as this can cause further irritation and discoloration.