Crying baby: NOTHING HELPS‼️‼️‼️‼️

Ok so I’m posting for my best friend. She said that her daughter, who is 1 year, has been nonstop crying since 11pm last night and has not slept at all. She had a fever a couple days ago and went to he dr and he said it was just a simple cold and she took her temp and she doesn’t have a fever. She’s tried benedryl, tylenol, motrin, teething toys, gas drops, rocking her , a warm bath with lavender, put lotion on her, tried a warm bottle and food, numbing stuff for her teeth, everything and she’s still crying even left her alone in her crib to see if she’ll fall asleep and nothing. Is there anything else she can do to help, any advice at all please she’s by herself since her fiancé is at work til late and she’s going insane because she can’t figure out what’s wrong!!!