Quite often these are fungal or dermatologic conditions which should be evaluated by your podiatrist. If found, he or she may order anti-fungal medications for topical use. I have extremely flat feet. Orthotics are devices used to support, align, balance and improve the function of the foot. They are used to improve compensatory joint motion and its associated symptoms, as well as to delay or deter the deformity.
Flat feet are usually hereditary in nature.
A podiatrist should be seen for a thorough history and exam of the lower limbs. X-rays should be taken to check for bony abnormality and biomechanical instability. High heels put strain on the front of the foot and don't have a toebox width, which causes constriction of the forefoot. When a woman has genetic tendencies towards bunions and hammertoes, high heels can aggravate and speed up the progression of the deformities. If a dress shoe is required for work, I recommend a heel no higher than one inch, with a broader heel and a wider, more squared toe box.