Maybe if you can tolerate vicks under your nose??? Or maybe an essential oil you can dab on a tissue to keep in your pocket. When something really bothers you, take out the tissue and smell until you feel a bit better. As far as the nausea goes I would call your doctor. They usually recommend unisom and B6 before they'll give you an anti nausea pill.

You may can ask you’re doctor for nausea pills that will help .