These methods do not remain effective for more than one hour after insertion. Usually, a woman lies down or sits on her heels, then gently inserts the contraceptive deep into her vagina. More spermicide must be inserted each time sex is repeated. Women who douche should not do so for six to eight hours after intercourse. If not used exactly as directed, these products may not form a good barrier over the cervix.
Some women complain of messiness or leakage.
Spermicide may irritate the penis or vagina. Switching brands may solve this problem. Large cans of foam contain between 20 and 40 applications. Film and suppositories are priced similarly. The cost in clinics or when authorized by a private doctor is covered by Medicaid in some states.