• Warts are skin growths caused by HPV or the human papillomavirus. These warts are contagious, but in most cases are harmless. The Mayo Clinic describes warts as "small, fleshy, grainy bumps." There are several different kinds of warts. Some affect the genitals, while others are more common to the hands and fingers. Still others, like plantar warts, mostly appear on the feet. Warts go away on their own, but there are medicines and over-the-counter drugs that accelerate the healing. Another option for treating bumpy warts is home remedies.
  
  

Salicylic Acid

• The Mayo Clinic in its article "Common Warts" reports that a home remedy for warts is salicylic acid. This acid is found in aspirin. The salicylic acid "peels off the infected skin" reports the Mayo Clinic. One method of using aspirin is to melt a few tablets in a bowl of water and then apply the mixture to the wart. Putting on a bandage keeps the mixture on the wart. The salicylic acid works by sloughing off the layers of the wart over time. Daily application for several weeks gives the best results.
  
  

Abrasive Products

• Another home remedy for bumpy warts is to file them down with a pumice stone or a nail file suggests the Mayo Clinic. The abrasive texture of the file and stone scrubs away the wart layers, removing the hard covering of the wart. Soaking the wart in warm water or applying a warm compress to the wart helps to soften the area and makes the wart more receptive to the scrubbing from the file or stone.
  
  

Duct Tape

• Another inexpensive way to treat bumpy warts is with duct tape. The Mayo Clinic says that some studies show promising results with duct tape for wart removal. The process is easy to do. Apply duct tape to the wart for six days. At the end of the sixth day soak the bumpy wart in warm water and then file the area with a pumice stone or emery board. Continue this process for up to two months.