GoVote.org. The cost of getting a Private Pilot's License varies depending on which type of flight training program you you choose. Federal Aviation Regulations (FAR) Part 141 flight schools require an approved, structured course of training, which includes a specified number of hours of ground training.
A corn or a callus is the most common cause of painful bump on bottom of foot, which results from constant pressure or friction from your tight shoes. Repeated trauma can also cause a hard spot on bottom of foot. Calluses can be really painful especially if you often stand on your feet all day.
A doctor can remove problematic spots on the bottom of the feet surgically or through cryotherapy, a process in which the spot is frozen off with liquid nitrogen. He can also use canthardin to cause the spots to blister and pull away from the skin. Spots caused by syphilis must be treated with an injection of penicillin, which ceases the disease.