Little children and people who already have respiratory problems like asthma are at very high risk. Toxic mold exposure can be detrimental to someone who has asthma. It can even cause death if it is not recognize and treated.
Although medications may help, the only real way to treat these complications is to get away from the toxic mold. If that means moving or going somewhere else while the toxic mold is cleaned, then that's what needs to be done.