It could be from the bedding, but your mom does not know. She isn't a vet.
I'm just saying, hermie...you cannot be too careful.
You really should take this piggy to a vet. Take BOTH to the vet.
Pronto.
I know. My mom doesn't understand that. I told her a bunch of times. She said that Pretzel is OK because he doesn't have anymore symptoms. Hoepfully if any of them are sick, Pretzel will sneeze after the bedding is changed.