What should I do about my mother's stomach ache?

It would be better if you avoided mouth-to-mouth and oral sex with your partner for the moment. Viruses like hepatitis A are passed on from person to person through bodily fluids. The health of your liver would improve if you get rest, besides sticking to a diet of nourishing, healthy foods, and overloading on water. The body takes time to regenerate and heal. 

Stomach ache is the sudden pain in the belly that you feel. It may be caused by eating quickly, eating spicy food, or feeling stressed. You should try to relax and take slow breaths when these cramps occur. Drinking warm water and putting a hot water bottle on your tummy can help as well. Eating small amounts of bland food while avoiding caffeine might also relieve the cramps.

His stomach pains after e­ating might result from acidity or gas. Fast eating habits, spicy foods, and oily dishes ofte­n contribute to this discomfort. Advise him to consume me­als slowly, avoid spicy fare, and eat smaller portions throughout the­ day to alleviate symptoms. 

Experiencing pain, blood, and a burning sensation during or after a bowel movement could be due to various reasons such as anal fissures, hemorrhoids, inflammatory bowel disease, constipation, anal infections, or other concerns

Consider testing for food intolerances or sensitivities might be helpful. While IBS doesn't cause structural damage like Inflammatory Bowel Disease (IBD), it can still lead to uncomfortable gastrointestinal symptoms.

It looks as if you are feeling uncomfortable because of an inflammation of your mouth, which may be due to sores, pain, or sensitivity. The most common of these are a result of the consumption of substances like chewing tobacco. The best thing to do is to clean your teeth using a good dental floss, do not use spicy or acidic foods.