Is it ok to bring my 14 months little one with me to visit a newborn baby (relative) that has just arrived?

My mum cut de pomogrante leave/tiny branch with leaves n put in my lo's pocket.. Come home clean up with new pomogrante leave/tiny branch with leaves.. (Mum said baby can slp happily n not cry in de middle of de night aka for heng heng) Dunno true or not but as long it works, I'm happy :)