<s>[INST] Hello Doctor, Myself sonakshi and I have a son who is more than 2 years old. When he was just 7-8 months old a white patch suddenly appeared on his forehead, then i have been started a homeopathy treatment for this patch.The treatment is still running from around 1 and half years . Even sometimes it shows clearly and sometimes it shows light. Kindly suggest me what should I do now and what should i take the precautions for him specially in foods? [/INST] dear parent, this could be due to a fungal infection or vitamin A difficiency to differentiate an examination is required. vitamin A is treated with vitamin A supplement. fungal infection is treated with an antifungal medication </s>