The rash that you speak of is probably exiting organisms, and yes, the treatment is working and you should not give up. Do not be concerned about the amount of salt, it has never been any problem for me, and I am in my 50's. Do not give up. Your daughter deserves to get better. I hope you are not giving her too much salt and c. The site says to use 1 gram of each for every 10 pounds of body weight. So if she weighs 50 pounds, she should only get 5 grams of the salt and C in one day, spread throughout that day. For her sake, do not give up.