hey, i have notice dark skin discolouration  around my chin all of a sudden. i know i am allergic to nuts and did took some nuts yesterday but the discolouration on my my chin is not painful or sensitive at all. it is just there dark and ugly rest of my face if fine. I am worried what it is and how can i get ride of it ASAP. and it only appeared yesterday.
Hello, Welcome Chat Doctor. As you said you are allergic to nuts. Hyperkeratotic patch on chin may be due to sensitivity to nuts. It may be fixed Chat Doctor. .fixed food eruption. There are reports on such type of lesions cashew nuts, almonds, peanuts. Take short course of steroid. Apply mild steroid cream. Mometasone creamAvoid soap on face. Color may remain for long time. Avoid to ingest culprit nut. You take advice from nearby dermatologist also. I hope you got my answer. Regards.