I have worked with an autistic child he was diagnosed at 21/2 completely non verbal taught him sign. I also have experience with children with cancer. The child I worked with I started with her when she was 3 weeks old she was diagnosed with ALL pre B(acute lymphoblastic leukemia) at age 3. I sat in the hospital and gave her meds at home as well as stayed up until 3 in the morning after she threw up her 4 pills. I had to take them all over again one at a time, every 30 minutes 3 years of chemo she went into remission at age 6 she is still in remission at age 9.