How To Improve Communication And Social Skills?

Sir, my daughter is 10 years old. She has developmental delays from child hood. Now her language is not developing. she has IQ around 70 to 75. She has one fit at the age of 4 years and taking Valparin 200mg syrup. She is taking strocit drops for last 4 months and has taken nootropil syrup for 4 years at the age from 3-7 years. She is also taking speech and language therapy but not showing good results. poor in academics. is storcit drops help her or what should we do to help her because her communication and social skills are very poor.