If you’re being treated for chlamydia, it’s really important that your sexual partners get treated as well. Otherwise, you can keep passing the infection back and forth (or to other people). While taking the medication, don’t have sex for 7 days. If you only have 1 dose of medication, wait for 7 days after you take it before having sex. If you’re taking medicine for 7 days, don’t have sex until you’ve finished all of your pills. Remember to use condoms and get tested regularly to prevent future infections.