Summarize this article:

If you have tried to get rid of warts unsuccessfully, you should turn to a medical professional for help. They will have additional treatments that can remove the warts immediately. Most doctors can treat warts but dermatologists specialize in this type of skin problem. If you want to ensure that the wart is removed effectively, seek out the care of a dermatologist. There are a variety of prescription medications that your doctor may suggest for treatment of a wart. These medications typically work by increasing the immune response of the body. They are traditionally applied either topically or injected into the wart, however there are newer systemic medications that are taken in pill form. As with all prescription medications, talk to your doctor about possible drug interactions and side effects your new medication may have. For example, systemic wart medications in particular have been known to impact liver function. Many dermatologists remove warts by freezing them off with liquid nitrogen. This is a common treatment for warts and is typically very effective. To freeze off your wart, your doctor will give you a local anesthetic to dull the pain and then will apply the liquid nitrogen to the center of the wart. This will kill the cells of the wart.  It can take a few weeks for a wart that has been frozen to fall off. It may also take more than one session of cryotherapy to effectively get rid of your wart. Some side effects of cryotherapy can include scarring and changes in the skin's pigment. Your doctor will also need to be careful when doing this procedure on sensitive areas of the hand, such as the side of fingers, as it can impact nerves and underlying structures. Your doctor may suggest removing the wart surgically or with a laser if home treatment has been unsuccessful. This is an in office treatment that requires local anesthetic and some aftercare, including keeping the site clean as it heals.  Removing a wart with a laser is typically much more expensive than doing cryotherapy. Discuss with your doctor why the more expensive procedure is necessary. Removing a wart surgically can be more painful than with cryotherapy or laser removal. It is also more likely to cause scarring. Talk to your doctor about why they want to perform this procedure, as opposed to others, before agreeing to it.

Summary:
See a doctor if home treatment doesn't work. Use prescription medication. Remove the wart with cryotherapy. Have the wart removed with a laser or an incision.