Remove the condom carefully so no semen is spilled. Store condoms in a cool, dry place away from direct sunlight. Don't keep them in your wallet or car because latex can become brittle or gummy if it gets too hot, too cold or too old. Never use a condom if it, or its package, is damaged, discolored, sticky or brittle. Dry condoms are usually preferred for oral sex.
Lubricated condoms are best for vaginal and anal sex.
Some foams and jellies that prevent pregnancy by killing sperm are also good lubricants. These products are named only because they are sold in local stores. They are not endorsed by the Department of Public Health. If you want even better protection, use a lubricant that kills sperm. Studies prove that sperm and germs, including HIV, cannot get through latex condoms unless they break.