Sounds like a low maintenance dose to me, unless it is above 20 PPM or has additives. I would take those 2 teaspoons and put them in a nebulizer so she can inhale into the lungs.
The danger is you could kill off to much with a large dose and the body would have to remove the dead pathogens. So with a bad liver, start out small and work your way up. Drink enough clean water.
I have drank 8 ounces a day for 1 1/2 months with no problems.