This is based on personal experience but you can apply a mix of ginger juice and mustard oil on her chest and back just before she goes to sleep. Will help her sleep well.

aap use jaifai ko ghis ke milk m ek spoon m dijiye bahut aram milega aur aap mustard oil ki jgh desi ghee use kijiye kyunki mustard oil kai bar allergic hota h baby skin k lye .aap desi ghee gram krke uski chest ki Mali's kijiye . Vicks mt lagaiye baby abhi bahut chhota h uski jgh easy breathe capsule ko phod or uske clothes p chhidak dijiye thk ho jayega

I had given my little one tulsi ka juice with honey , worked wonders ...

Thank you everyone.