Help!

My son got sick in his car seat yesterday, it was allllll of his lunch. 😭 The liner smells fine cuz I’m able to throw it in the washing machine but all I did was wash out the actual seat with hot hot hot water cuz I know I can’t use cleaners on the straps. I’ve lysol’d it but it still smells! Any ideas?? Like it’s to the point if I can’t get it out it may need to be replaced it’s so bad.