I had taken methylene blue daily for maybe 4 months, when I started having swelling in my throat. I can normally swallow a handful of supplements at once, but recently when swallowing only two they get stuck. I've been taking 60+ supplements a day one at a time... I've also had strange issue with my airway which started before I took methylene blue. I'm very prone to allergies, and was concerned that the throat swelling and airway issue sounded like anaphylaxis.
I stopped taking methylene blue, and went on 40 mg of Prednisone (steroid) for 5 days. I'm much better now, but methylene blue was really great for me and I want to go back to taking it. I don't have a way of determining whether it was part of the problem without testing it, and yet I like breathing and swallowing, so I'm wondering if anyone has had an allergic reaction to methylene blue. Thanks in advance!