Hello Anonymous, and thanks for sharing your concern with the EmpowHER community.
It's concerning that you've been dealing with this skin condition for four months. Please take steps to be sure the area is kept dry and to also allow it to fully heal when it forms the scabs.
Cortisone 10 is a mild corticosteroid. It will help reduce the swelling and itching that comes with a wide variety of skin conditions including insect bites, poison ivy, allergies, dermatitis and more.
If you have a more serious skin condition, such as a fungal infection of the skin, then you need a different type of treatment, such as a clotrimazole cream or topical ointment. These work by weakening the cell membrane of the fungus, resulting in the death of the fungus. These can be purchased as over the counter drugs.
This information is just a suggestion, not a medical opinion. If this condition continues to persist then you should see a doctor, preferably a dermatologist, for an exam and diagnosis.
Hope that helps,