Ddog age 12months. Chemical castration a week ago.His pee smells!

[TheMauveTiger]

As title. He gets wee all over his undercarriage and even up to his chest. He's a cavalier so he has feathers and God he honks.
I want to shower his underside to get rid of the smell. Is weekly too often?

A friend's Cavalier had a misaligned urethra and peed in his armpits, so it might be worth checking in case your dog needs a little operation.