Newborn jaundice, sunburn,

If it is physiological jaundice, you can improve it by drinking more water and getting more sun, but pay attention to it when sunbathing. You should choose to bask in the sun before 10 a.m. or after 4 p.m., expose your baby's back, buttocks, feet, palms and other parts, and be careful not to bask in your child's eyes.