In my humble opinion, doctors who blow off patients' concerns are not being good doctors. It is their job to help you understand what you are being told to do, how to do it, and to answer all your questions and concerns about your condition and treatment. If they blow you off, they are not doing their job, period. I don't know if there is any way you can see a different doctor but you might want to consider doing so.
Tylenol (acetaminophen) may reduce the effectiveness of glutathione.
http://www.glutathioneexperts.com/ has a bunch of info about glutathione in general, and a downloadable presentation about the use of glutathione as treatment for Lyme can be found here: http://www.glutathioneexperts.com/glutathione-lyme-1.html
Chronic Lyme Disease, Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, Anemia, Lymphopenia, intermittant Pancytopenia, chronic malabsorption/malnutrition, etc.; G Tube; Currently TPN-dependent.
Meds: Zofran, Pulmicort, Heparin (to flush PICC line), IV Cipro (for G-tube site infection).