i have had this itch for a couple of days that i attempted to scratch the inside from the outside to relief the itching. it worked and now the itch has stopped. is it possible that i scratched and caused a sore with in my uretha and the puss is because of an infection from urinating or sexual fluid releasing. can it be yeast infection. my sex partner had this itch around the opening of her vagina and thinks she has yeast infection. can i get yeast infection my having sex with someone who has it. when i urinate it doesn't hurt it just stings as if i got soap inside my track which irritates my track. any possible suggestions or advice.

Let me get this right... are you saying you stuck something in your uretha to releave the itching? That is not a smart thing to do, but I am not judging you.
You also say your G/F has itching, maybe you both should see a doctor and be checked out, you might have an infection, by all means see a doc! If your under age (younger than 18) just talk to your Dad or another male you can trust and talk openly to about your discovery (the puss), are you sure it wasn't pre-cum? You don't need mention that you are sexually active, but talk to someone!
Keep us informed on how things turn out,
Keil

no i didn't stick anything inside. i scratched from the outside underneath the shaft. and it is not pre cum. my precum is clear. this has to be puss. but is doesn't hurt and i am 25 years of age.

That type of discharge from your penis deserves a check up by a doc. I'd be worried about several things...mainly that everything is OK in that department.

First thanks for the update and YES I agree see the Doc!
Keil

Certain STDs present themselves by a pus discharge. I am concerned about that.
Get checked and checked soon!