My sister is at the end of her tether. Her DD has a dummy, but it is more trouble than it is worth as she is constantly having to put it back into her mouth as it falls out when she is asleep. It does comfort her when she gives it to her. She doesn't use it during the day, just sleep time. Not breast fed. Mine didn't have dummies so I can't help her. Can you? By the way she is nearly 6 months.