No..You are suffering from acanthosis nigricans Causing darkness. Medicine available for good improvement......As the treatment varies depending on the severity... Send photos of the affected area, by direct online consultation for accurate diagnosis and treatment.

Before jumping to the treatment, it is first important to find out the chase of underarm pigmentation. This description sounds like acanthosis nigricans. This is a condition where your skin​ folds like underarms, inner thighs or groin, neck and face becomes dark. It is either genetic or due to sedantry lifestyle and overweight. This can be treated. Please contact me with photos using online consult option for proper diagnosis, treatment advice and prescription.

Peeling can be done. Regarding type of peel to be used- best is to leave the option to ur doctor. Depending on the cause the type may vary.

Yes peel can be used. Type of peel Depends on the cause of pigmentation