My 16 month old is going thru the worst teething phases I have ever seen. Right now her back teeth…

My 16 month old is going thru the worst teething phases I have ever seen. Right now her back teeth are coming in & she hardly sleeps. She cries all night even when I give her motrin. When she does fall asleep she's back up every hour all night long. I'm praying this next baby is not as bad.