My freinds gonna pierce my lip at school on tuesday?

ok so i know i need to bring alcohol and stuff to wipe on the skin before she pierces it but what about after she pierces it? what do i have to put on it to keep it from getting infected? i know i should get this done professionaly but mom wont let me so…yeah i've decided to let my friend do it. today i watched as she pierced a boys lip today in the girls bathroom stall. so after she pierces mine what kind of cleanser do i need to buy for it? tell me what i can do to take care of it and keep it clean. btw shes doing this with a push pin.