Conversation: The conversation between human and AI assistant.
[|Human|] The skin around my anus has become itchy...for several weeks. Upon inspecction this evening I noticed that I m losing pigmentation of my skin in that area. I have been diagnosed recently with several other conditions...alopecia areata, hashimoto thyroiditis, and alpha gal. Could any of these be the cause for this? What can be done to get rid of the itchiness? Preparation H and Witch Hazel don t seem to help much.
[|AI|]  Hi welcome to Chat Doctor. Thanks for writing here. Since you are having alopecia errata, hashimotos thyroid, all these are suggested autoimmune visor Chat Doctor. Itching with loss of pigmentation over anal region probably suggest vitiligo which is an autoimmune disease and can be associated with these. You need systemic corticosteroids, and it will be better to consult a dermatologist. Take care.