Bloating

Is it ok to take baking sofa and water during the hours of taking mms?

Probably not. Baking soda will reduce chlorine dioxide (CLO2) so MMS may not be very effective for you.

How about activated charcoal?

The only "food" you should eat/drink while dosing should be low in antioxidants, and in small quantities. Snacks between doses. One hour after the last MMS dose of the day, you can eat anything in any quantity.