Kudos to you for not letting Fibromyalgia get in your way of traveling! It's hard to totally avoid germ exposure when we travel, but it sounds like you have a very strong preventative strategy in place.
Adding a natural antimicrobial nasal solution would be a smart addition to your travel wellness protocol. PrevinC provides a natural protective barrier in the nostrils by trapping dust, particles and respiratory germs that may cause colds and flu.
The citrus limon burm solution adds moisture to the distal nostrils which is perfect when traveling in a dry environment like an air plane. It's also non-toxic and homeopathic, so there is no danger of an interaction with any of your Fibromyalgia meds.
Good luck and safe travels!