Naturally alkaline water has a chemical makeup that differs significantly from artificially alkaline water. More important, however, is the fact that artificially alkaline water causes side effects and should generally be avoided as a daily drinking water.
You can have sex seven days after single-dose injection with ceftriaxone for gonorrhea. If you used another medication for treatment, you must contact your health care provider advice specific to your situation.
So I heard a couple different things: (1) If you got it within 7 days of the start of your period, you can have sex w/o condom immediately. Otherwise, wait at least 7 days before it starts being effective, and use hormoneless protection until then. source: Planned Parenthood website.