What are binders? I guess that answers that I'm not, but I'm not sure that I've been told about it? Maybe that comes later in the process?
Sarna is used to relieve itching and pain (on skin only). It contains Pramoxine (SP ?) whicchacts as a local anesthetic. It can be purchased online if you can't find it at your local Pharmacy.
I've always had dry itchy skin in winter time. Is this something new for you? Remember that symptoms, meds, treatments are all specific to you.