Hello Kat and welcome to the Cow Audio Forum,
First, you dampen something with a liquid. You damp to reduce vibration or movement.
Second, if you want your recording to sound as though you have a sound blanket over your head, sure, have at it.
Most of the time, though, you want a controlled and natural sounding space.
Knowing nothing about the room, I can't really tell you what to do. More details please.
Regards,
Ty Ford
Cow Audio Forum Leader
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