Previous infection with warts does not protect a person from repeat infection. The wart virus has many different types, so repeat infections are quite possible. Treatment can be with chemicals applied to the warts, by freezing, or by surgical removal. If a person is not treated, the warts will very likely continue to grow, spread, and be passed along to sex partners. There is an association between some strains of wart viruses and cancer of the cervix.
Abstinence is the only sure way to avoid STDs.
Try to limit your exposure to STDs. Unprotected sexual activity increases your chance of exposure and infection. Use barrier protection, like a condom. Look at your partner before having sex. If you see any sign of an infection such as rashes, sores, discharge or swelling, stop and talk about the importance of checking for an STD before having sex.