My father in law just told us to disregard what a specialist told us and to not talk to our…

My father in law just told us to disregard what a specialist told us and to not talk to our pediatrician about something and to go to a family doctor. umm no. We need to do this through his doctor and we aren't gonna pay money to get told to go to our doctor and listen to the specialists. they are gonna look at us like we are stupid for doing this.