Hello @sanibelsandy, and welcome to Connect. Thank you for starting a conversation about silicone allergy and a cPAP mask. I did some research of my own and it does appear there are some masks that are made from a different type of gel, but it would be best to consult with your physician about the alternative mask types in case that you have an allergy to the other mask types as well.
While I search for some other members who also have a silicone allergy, would you mind sharing a bit more about your situation? How long have you been using a cPAP before you developed your allergy? Has your physician diagnosed your allergy and talked about any other alternatives?