The most important part of treatment is to reduce friction, rubbing, or injury to the areas that are darkening. The irritation can also be reduced with the use of cortisone creams such as hydrocortisone or stronger ones that require a prescription from a doctor.
The addition of a daily moisturizing lotion such as Eucerin or Cerave can help. Avoiding sun exposure is also important. Bleaching creams are usually not helpful.