Bacteria can spread infection through small fissures that may develop inside dermititis throughout the heel as well as on other parts of the foot or via corns, calluses, blisters, hangnails, or ulcers. If the treatment cannot come from best, the bacterial infection can destroy skin, tissue, and bone or spread through all around the body. There are some symptoms: Pediatric rheumatologists are doctors who specialize in providing comprehensive care for children (and their families) who have rheumatic diseases, especially arthritis.