what should I have to do my daughter have dark circles under eye age 5 year old

A. Hi mom Maintain hygiene Maintain hydration Apply coconut oil or olive oil Apply aloe Vera gel Apply gram flour turmeric mixture daily Take a good care of your baby Burp well after every feeding Do tummy time and cycling movement of legs to relieve gas and constipation It May be due to some allergies or nutritional deficiency Give ultra D3 drops and calcium supplements