Iodine, Colloidal Silver , hydrogen peroxide and all the others did not give me complete resolve.
Since the colostrum has worked for me, I feel that in my case and probably many others, there is just a lack of good microbes in our digestive system. Drinking as much colostrum that I did in such a short amount of time must have replenished some much needed things.
I could never digest lactose either throughout my life, but from my experience, it has a lot to do with the genetics of the cow and if it is pasteurized or not. I couldn't drink/digest A1 raw milk, but I could easily drink/digest A2 raw milk. You may want to look into that also.
But since the colostrum, I can actually now drink A1 pasteurized milk. I went on vacation and didnt have my normal milk supply, but it turned out that digestion issue is now gone.