We use that at the end of the suction tube to prevent irritation and bleeding in the nasal passages. This is tricky due to lack of muscle tone, but with careful practice we are able to take him into pools during the summer. Weightlessness in the water is very soothing to him. Buy a good life VEST just in case. He also loves floating on an inflatable raft, he will fall asleep if we let him.
Music boxes are very soothing.
Mix all foods with cereal if your child has a reflux problem. It really helps. For us thicker is better, but you may find different. Try juices with low acid content. We like Welch's orchard.