Doctors may choose from several different techniques for removing plantar warts.
- Acid: One of the most common methods is to burn warts off with a mild acid applied topically to the wart. Many applications may be required over the course of several weeks to achieve this, but the technique is highly successful. Salicylic acid and dichloroacetic (or trichloroacetic) acid are useful.
- Other acid methods may be used.
1.1. Upton's paste: A piece of thick adhesive tape (such as Leukoplast), with a hole cut in the middle for the wart, is applied to the sole to isolate the wart. Upton's paste is applied to the wart, and the whole area is covered with a second piece of tape. This is kept dry and intact for one week. The wart is then pared (shaved down) and the paste reapplied until clearance occurs. Upton's paste consists of six parts salicylic acid and one part trichloroacetic acid in glycerin, mixed to a stiff paste (ordered by prescription).
1.2. Salicylic acid in white soft paraffin: A mixture of 40%-60% salicylic acid in white soft paraffin is applied daily after showering and covered with waterproof tape. You pare the wart once a week with a sharp blade.
1.3. Efudex (5-fluorouracil), although not an acid, is another topical ointment that can destroy wart tissue in a manner similar to chemotherapy for skin cancer.