Dermatology Questions? Ask an Online Dermatologist.
Hi. Welcome to JustAnswer. My name is Uzair.I am reviewing your post and will get back to your reply momentarily.
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This looks like an inflammatory patch. I would recommend you to apply hydrocortisone 1 % ointment it would relieve inflammation and redness.
Let me know if you have further questions.
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Wish you good health.
It is not a specific disease just a nonspecific symptom can be due to irritation or allergic reaction causing inflammation of the skin.