They may want to see you anyway to evalute you, do labs. I never used a neti pot, but several things I know is not to use tap water, clean it thoroughly, don't use cold solutions in it. If the commute gets to be too much there is The American Cancer Society's Hope Lodge on 32nd street between 6th and 7th Avenues. Its free of charge, has 67 guest rooms, and better than many hotels. I stayed there 6 weeks in 2012. The only requirement is travel time to be more than an hour, and most places are by commuting. MSKCC, if treated there, have shuttle busses every 20 minutes to and from. Others need their own travel arrangements...subway, bus, taxi, ambulette, access-a-ride. See your cancer centers social worker who makes the arrangements.

Ask about after hour concerns since most seem to occurr at night, weekends and holidays. Mine gave me a contact sheet, including the oncologists number. I called once, and doctor called back within 30 minutes.

Good luck