Yes, an allergist is a specialist, and if you have an HMO you may need a referral from your PCP. An allergist might be expensive, but will still be cheaper than buying replacement items for the ones you might remove from the house without an actual need to do so.

There is a lot of "junk science" out there when it comes to various allergies and sensitivities, so beware. Do see an allergist ASAP before you try to engage in self-help. That would be the best course of action for you.

I mentioned "junk science" because your OP contains many statements that are odd, and might indicate that you have been reading "literature" that makes wild, untested claims. Please see a real doctor and run all those beliefs of yours by him or her, to get a reality check.