There are certain signs and symptoms of autism in children which a parent should be aware of and would know when to take the child to the HBOT center for correct diagnosis and start the hyperbaric chamber therapy in HBOT chambers.
Autism treatment in children should start when children with ASD demonstrate deficits in
1) social interaction,
2) verbal and nonverbal communication, and
3) repetitive behaviors or interests.
In addition, they will often have unusual responses to sensory experiences, such as certain sounds or the way objects look. Each of these symptoms runs the gamut from mild to severe. They will present in each individual child differently. For instance, a child may have little trouble learning to read but exhibit extremely poor social interaction. Each child will display communication, social, and behavioral patterns that are individual but fit into the overall diagnosis of ASD.
Children with autism, requiring HBOT chamber treatment in good and established HBOT centers, do not follow the typical patterns of child development. In some children, hints of future problems may be apparent from birth. In most cases, the problems in communication and social skills become more noticeable as the child lags further behind other children the same age. Some other children start off well enough. Oftentimes between 12 and 36 months old, the differences in the way they react to people and other unusual behaviors become apparent. Some parents report the change as being sudden, and that their children start to reject people, act strangely, and lose language and social skills they had previously acquired. In other cases, there is a plateau, or leveling, of progress so that the difference between the child with autism and other children the same age becomes more noticeable.
Source – National Institute of Mental Health (NIMH)