A lice-killing lotion containing 1% permethrin or a mousse containing pyrethrins and piperonyl butoxide can be used to treat pubic (crab) lice. These products are available over-the-counter without a prescription at a local drug store or pharmacy. These medications are safe and effective when used exactly according to the instructions in the package or on the label. Lindane shampoo is a prescription medication that can kill lice and lice eggs.
Trichomoniasis is another type of vaginal infection. It is caused by a single-celled parasite that is usually spread through sex. In addition to causing bleeding after sex, it can also cause vaginal discharge and itching.
Pregnancy can occur if a woman and a guy have faux sex or dry sex. (True). This is when there is no penetration, but there is skin to skin contact of the genital area. Again, anytime the penis and the vaginal area come into contact, there is the slight risk of pregnancy and a risk for STD transmission. A woman can't get pregnant from pre-ejaculation.