My right foot heal no matter what and been like a year this tiny little scratch up Why?

Possible causes of a persistent scratch on your right foot heel:

1. Athlete's foot: A fungal infection that affects the skin on the feet. It can cause itching, burning, and scaling.

2. Contact dermatitis: An allergic reaction to a substance that comes into contact with the skin. This can be caused by anything from soaps to detergents to plants.

3. Psoriasis: A chronic skin condition that causes red, scaly patches of skin. It can affect any part of the body, including the feet.

4. Eczema: A chronic skin condition that causes dry, itchy, and inflamed skin. It can also affect any part of the body, including the feet.

5. Lichen planus: A chronic skin condition that causes small, itchy bumps on the skin. It can affect any part of the body, including the feet.

6. Heel spurs: Bony growths that develop on the back of the heel. They can cause pain and inflammation, and can sometimes lead to a small scratch or break in the skin.

If you have a persistent scratch on your right foot heel, it is important to see a doctor to determine the cause and receive appropriate treatment. The doctor may recommend antifungal medication, antibiotics, steroids, or other treatments depending on the underlying cause. In some cases, a biopsy may be necessary to confirm the diagnosis.