Pastor My mum died,

Pastor
My mum died, she had bedsore wound. We’ve been going to clinic to get wound clean daily.
On third day,we came back from clinic, she was fine, the clinic gave a patch to put to prevent other bedsores.

I saw when we reach home and immediately told sister don’t put that patch as years ago the same patch cause severe reaction.
Sister didn’t listen, put patch, few hours later cause her saliva come out n choke her.
Normally clinic never recommend patches.
Why the Lord allow patch that kill mum to come to my house.?
I need to know, I’m condemning myself,she’s not supposed to go.