At first, your feet may just feel sore, dry, or slightly itchy. After a while, the skin thickens, cracks, or peels.
If the infection advances to your nails, your toenails may also get thick and crumbly. Sometimes the nails even come out.
You might not be able to use a treatment that goes on your skin. Sometimes a combination of different medications works best for this, including a separate one for your nails.