Sneezing Again?

[PaytonMichelle]

So now my other pig Winston is sneezing and Nugget continues to sneeze. I've replaced the bedding, the hay and the water. They continue to act completely normal and eat normally. Anyone ever had this? Is it just the weather changing? Is it allergies? Help if you can!

 

[Wiebke]

So now my other pig Winston is sneezing and Nugget continues to sneeze. I've replaced the bedding, the hay and the water. They continue to act completely normal and eat normally. Anyone ever had this? Is it just the weather changing? Is it allergies? Help if you can!

Have you checked for other environmental components?
This link here contains a list of other likely culprits once you have excluded hay dust and bedding.
Irritants to Avoid Around Guinea Pigs