You can use preserative free artificial tears (like refresh celluvisc or systane) about every hour and take oral flaxseed oil and omega 3 fish oil supplements by mouth. Punctum plugs can be helpful as well. Restasis can take several months to help and will give no immediate help. Nasonex can help sinus allergies but I'm not sure how that will help your dry eyes. The important thing is for you to keep in close contact with your ophthalmologist so that different treatments can be tried as needed in order to help you get some relief.
I would recommend that you seek the care of an eyeMD. You mgith want to try eyedrops which have no preservatives and also, evaluate any other systemic medications you are using which may cause dryness.
Sandy T. Feldman, M.D., M.S.
ClearView Eye and Laser Medical Center
San Diego, California