Awwwww.... He Is Absolutely ADORABLE!!!!
When I picked Riley up, last month from his neuter, my Vet told me:
He can eat, drink, pee, poop, and do everything he did before with the e-collar on....and don't let him make you think he can't......
Luckily I only had to use it for a few days.......about a week after his neuter. I was using a baby onsie but he slipped out of it while i was at work and was licking once it was starting to heal and the hair was growing back.
Best of luck!!