Talk to Gynecologist on Problem With Milk Intake.paeds Help Required

Any paediatrician can help me out ? Its kind of urgent ?? My little one is 10 months old and exclusively breastfed...since 2 months she was teething so she didn't take proper feed which resulted in reduction in my supply! Now she is hungry but my supply is limited due to which she still remains hungry hence very cranky. Im trying to introduce formula to her but she simply doesn't know how to suck a feeder ? Any help will be appreciated?! Which formula/teat or feeder should i try so she takes it just like breast?! Thanks in advance.