Hello! Black mark on forehead could be due to lot of things such as sunexposure,reaction to cosmetics,fixed drug eruption etc. The treatment would depend on the diagnosis.
Any deep pigmentation issues are addressed with topical medicines and peels, mesotherapy or q switch laser depending on the severity of pigmentation.
Only steroid application will take time to show a response.
Answered2017-08-29 14:33:10
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