Hi there. I am 19 years old and i just found out that i have gonnorhea.i went to my schoos clinic and got a shot for it, and they told me it should go away.is that true?

Also, i have been seeing a thick white discharge from my vagina for the past 2 weeks. this is something new to me.When the discharge dries up in my underwear, it looks like a crust. it does, burn or itch..its just really thick..what is this?