Hi.Thanks for the query
You could be suffering from eczema
in the area.
In most cases ,this should subside by application of a steroid
cream for 1-2 weeks and taking anti histaminic tablets orally.
It should be remembered that this is a recurrent condition and frequent follow up treatment with a dermatologist
might be necessary.
You should try to keep the area hydrated by application of an emollient
several times in the day .Do not apply any deodorant in the area around it.
Hope this is helpful