Warts are tumors or growths of the skin caused by infection with Human Papillomavirus (HPV).They are contagious when in contact with the skin of an infected person. It is also possible to get warts from using towels or other objects used by an infected person.
The strain causing skin warts is different from the strain of virus causing cervical cancer and warts are not transmitted by swimming because the virus does not survive for long in water. For small warts, several medications(like podophyllum resin, Podofilox (Condylox), Trichloroacetic and bichloroacetic acids, Imiquimod 5% cream and interferons) are available, which can be applied directly to the surface of the warts.Other treatment options include electrical cautery, surgical removal, Carbon dioxide laser treatment and electrodesiccation.
In my opinion you should talk to a cosmetologist/dermatologist about this and get these warts evaluated. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.
I know, this is an old question but I will answer for other people to find out my story. My son had many flat warts on his face when he was about 7. The skin doctor was burning each of them with Nitrogen. Poor kid, after one year of this treatment, he was worse. The next summer we went to Belgium for a vacation. It was very hot, we spent long days, visiting the beautiful cities. His flat warts doubled in a couple of days. He had hundreds! I was desperate. And then I said, ok, I have this tea tree oil bottle with me. The only medicine I have. I started to put it on his face, every night after shower. Pure tea tree oil, not diluted. Guess what. Yes. In a week, all of them disappeared! When I came back home to Canada and told the skin specialist, she didn't want to hear it. Because she needed to continue to charge for that stupid Nitrogen burning!