Baby is 18 days but she does not poo and stomach have a lot of wind and baby keeps crying. What should i do?

If your baby is exclusively on breastmilk, it is normal for her to not poo for a few days. In some cases it may even go up to 2 weeks. But if your baby appears to be uncomfortable or in pain, it could be some kind of digestive issue. I swear by 如意油 (ru yi oil) and find it very effective for my kids. Put 1 drop in your palm and rub your palms together. Then rub your palms over baby's tummy. You can do this several times a day. One other way to help baby move her bowels is also to hold baby legs up with knees bent and do a cycling motion.