Dear Nusrat,there are aprofile of childs behavior by which one can identify early signs of autism.These behavior may be delayed or regression in speech,child communicating via gesture like pointing instead of using verbal communication,preference of watching and playing with inanimate objects along with social isolation etc.Although the treatment may include medicines in certain cases but definitely occupational therapy is the treatment of choice along with special education etc.

Autism is a complex condition and quite heterogenous. Every case is different. Well trained and experienced clinicians are best placed to make an assessment. Assessment should guide the treatment.

I am aware that in many communities appropriate expertise to assess autism is not available and sometimes families struggle to find right resources for help.

Dear Nusrat, there are various therapies which help children with Autism. Therapeutic approach changes according to the symptoms and behavior child shows. The absolute reason for children having Autism is still a topic for research. But we can definitely find the traits through various profiles and start to plan for the same for the betterment of child with Autism