After virus warts grow on the feet, they can be treated by oral, topical drugs, surgery or physical therapy, as follows: 1. Oral drugs, mainly including acyclovir, famciclovir, etc. 2、 External drugs mainly include aciclovir ointment, penciclovir ointment, recombinant human interferon ointment, etc. 3、 Physical therapy is available, such as laser, microwave, cautery, etc. 4、 Surgical treatment. 5、 Poly myocytes or recombinant human interferon can also be injected into the base of wart body. Viral warts on feet can be treated by taking orally external drugs, performing surgery or physical therapy. Viral warts on the feet are called verruca vulgaris, which are caused by human papillomavirus infection. They are local yellow or yellowish brown growths with rough and keratinized surfaces. They are general and unconscious. Some patients may have slight itching or pain.