no
No.
dont do drugs and this wont matter
A slight tingling sensation in your mouth.
Is completely safe and is commonly used as a gargle agent.
yes! Kills the germs, bu do not swallow!! :)
Because you rinsed your mouth out with peroxide.
Hell no!!! NOt if you don't want to add acid to your mouth and burn your teeth!
No, because it can effect your body.
Only if u believe
Pure hydrogen peroxide certainly can cause chemical burns if it touches your skin. Hydrogen peroxide you buy from a drugstore is typically about 3% hydrogen peroxide and 97% water. As far as your skin is concerned, as long as you're not actually bathing in it it's not all that different from 100% water. You should be careful with even the dilute stuff around your eyes and mouth though; the mucous membranes are much more sensitive.
Do Not Try To Whiten Your Teeth With Peroxide it will burn your whole mouth. Update by someone else: I have used 3% diluted with water at a ration of 1 part water to 1 part hydrogen peroxide. Then swished it around my mouth for a few minutes and the spat out. This week I have done this 4 times without any burning sensation.
There is an actual method which involves using hydrogen peroxide and baking soda to make a paste and brushing this onto your teeth.