Here, pharmacist Brian Duggan advises the best painkiller for a range of common ailments Period pain ... Codeine can also help relax constricted stomach muscles that can cause painful cramping.

Medically reviewed by Robert Burakoff, MD A gastrointestinal (GI) disease affects your digestive tract—the path food and drink take through your body and the digestive organs. GI diseases can impact ...

With a stomach virus, your immune system is busy trying to help you feel normal. Those types of diseases might resolve spontaneously. Staying hydrated is essential if you have viral gastroenteritis.