Throwing up mucus can occur when mucus from your stomach lining or mucus that you swallow appears in your vomit. Mucus from postnasal drip and coughing can also trigger vomiting, especially in ...

Allergies and the very early stages of a viral infection can cause an overproduction of clear mucus. This can also happen when your body reacts to irritants or pathogens. White mucus is often a ...