Oh Yes.... I (unfortunately) know that smell.....

Buddy once had explosive diaherria all over my basement.
It took a long time for that smell to go away 100%.

My hubby wouldn't go down the basement for a week!
(Boys can be such sissies!!!)

But OMG... I have never smelt anything like that in my life, and I hope I never do again!

I'm glad to hear he's feeling much better!!