I am 74 have lots of head pain at times, I use hygrogen proxide 35% food grade from the health store with about 6 eye dropper drops in juice of about 8oz glass 1 to 2 times per day and it cleared my head pain back to normal, it felt like a bad tooth, but dentist says it is not your tooth, it is your sinus. The medical doctor called it tri-geminal - neuralgia. But this has cleared my problem up. Thank the Lord I feel I have found the answer. Baking soda may do the same though. my homopathic doctor taught us that disease cannot live in a high oxygen inverment. That is what is is.