Eeeewwww, Eeeeewww, Smell that Smell!?

Can anyone PLEASE tell me the scent that is in the neck pillow that Beauti Control gives the hostess of one of their spa parties? I love the product; the party was a bit fun, but the stench of the pillow when warmed is unbareable! I have tried putting lavender sachets that I made into the cover - and that didn't help at all. I don't want to take the entire thing apart as it is really well balanced and if it didn't contain the obnoxious odor I would love it. If you have any suggestions please help me. I am also not a seamstress and anything that even smacks of sewing is not something that I can do. (What a crappy grandma I am!) Thanks in advance ~D
This pillow is not filled with buckwheat hulls or flax seed. I'm not certain what is in it. I took some fabric softener sheets and made pouches of them in which I placed the lavender. I put 4 of them inside the removable and washable cover. I was hoping that someone here was a Beauti Control person and knew what was inside. I will try to spray with the odor covering spray. These are great suggestions; please keep them coming. ~D