Most babies spit up a little milk from time to time, and it's usually nothing to worry…

Most babies spit up a little milk from time to time, and it's usually nothing to worry about. . If your baby's bringing up large quantities of milk after a feed they may have reflux (also known as posseting or spitting up). Reflux happens because the tube that carries your baby's food to their stomach (oesophagus) is still developing, so milk can sometimes leak back up after a feed, and come out of your baby's mouth or nose. It affects up to half of all babies, and is usually mild. It should clear up on its own as your baby's digestive system matures, and is usually gone by 18 months. To help babies with reflux, burp regularly throughout the feed and dont feed them laying too flat. Dont put them down immediately after a feed. . Other reasons for vomiting can include: viral illnesses/ stomach bugs, food poisoning. In formula fed babies this is often due to bottles not being sterlised properly allowing bugs to grow. Babies that are weaning onto solids are also open to food poisoning so take care when preparing food. Vomiting with stomach bugs or food poisoning can be accompanied by a high temp, diarrhoea and feeling generally unwell. Rarely a condition called pyloric stenosis can cause vomiting. This is a condition in which food is blocked from reaching the small intestine. . Some babies can vomit due to food allergies - cows milk, nuts, eggs and wheat are pretty common ones. In babies younger than 6 months, these foods can come through breast milk and cows milk protein is found in formula milk. If you suspect your baby has a food allergy, seek advice from your doctor or an allergist. . If your baby is vomiting and can't keep any fluids down for 8 hours or more, seek medical advice. Otherwise, keep offering breast/bottle so that baby remains hydrated. If you are concerned at all that your baby is vomiting and is really unwell, seek advice from your doctor.