Substrate choices

[mrderson]

I need some help deciding on an appropriate substrate option for my hognose Daisy.

She has been on aspen since I got her about a year ago. I recently moved and have been buying my supplies from a different pet shop, the type of aspen bedding I bought must have had more dust than usual because she started sneezing. My other two snakes were fine on this same aspen.
I switched her to paper towel and she stopped sneezing but since she can't burrow in it I am only using it temporarily.

Does anyone know of any other beddings that have very little dust that are good for burrowing? Or a particular brand of aspen that is less dusty?