My wife has had a rash looking thing affecting her left foot for about 7-8 years. It does not respond to any medicines that have been perscribed to clear it up. She has had acute intermittant porphyria and wonders if this could be part of the problem.
Hi Dear, Understanding your concern. As per your query you have symptoms of rashes on foot which is very common due to skin infection, sun poisoning and as dirt and moisture get trapped. Need not worry. I would suggest you to keep this area clean and Chat Doctor.  You should apply warm compresses with soaked towel and apply vitamin C serum at night. If condition doesn't get better than consult dermatologist for proper examination. Doctor will examine physically along with blood test and sample for lab test. Doctor may prescribe immunosuppressants and may prescribe benzoyl peroxide ointment. Hope your concern has been resolved. Best Wishes,