Why are my lips numb after i shave?

im 13 and i shave with no shavin cream and only water, and it was my first time, but now my upper lip is numb and when i touch it it itches, anybody know whats wrong? kinda freakin outWhy are my lips numb after i shave?
Due to nerves being irritated.Why are my lips numb after i shave?
It will go away. You do know to use lather now, right?

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