Screaming or even asking for help in a dream is a warning you are sending yourself that you need assistance somewhere in waking life. Do you need financial assistance? Advice for your relationship? Help with a decision? Do you need a helping hand with all that is on your plate? Or is there some sort of situation you don’t know how to get out of? Or maybe it is an emotional or psychological issue that needs professional help.
Even if someone else is calling for help in the dream, it is most likely a call fronm your inner self that you are the one that needs to ask for some sort of assistance or advice in waking life.