my cats injured

Question
my cat came home with a big bump on his back later the bump turned into liquid then today my cat scratched his scab and yellow liquid started coming out wat should i do is this bad

Answer
Hi Nani!
Your cat is probably fighting and should be neutered to keep him from doing so.  He has an infection. Pour some peroxide , NOT alcohol, on the wound. Squeeze it a bit to make sure the peroxide gets in it good. This should cleanse it and hopefull it will heal.

God Bless,
Becky