What should you know about sea bands for nausea?

Sea bands use a small button to press an area on the inner wrist and may provide symptom relief for some people with nausea. They are non-drug devices, but their effect is variable and they cannot identify or treat the reason you feel sick. Use them as one supportive measure while watching for warning signs.

Nausea is a sensation that can arise from the stomach, balance system, medicines, pregnancy, infection, heat or changes in blood sugar. The wristband is based on acupressure: its button rests over the inner wrist and applies gentle pressure. Relief does not prove that a particular condition is present. Nausea may occur with acid reflux, gastritis, gallstones, gastroenteritis, food poisoning, hepatitis A, heat exhaustion or hypoglycaemia, each of which has different care needs.

Place the button on the inner wrist crease, following the manufacturer's fit instructions, and wear the matching band on the other wrist if the product recommends a pair. It should feel comfortably firm, never painful. Sip fluids regularly, choose small bland meals when able, and avoid strong smells or heavy food if they worsen symptoms. Write down timing, triggers, vomiting, pain, fever, diarrhoea and urine changes. This record can make a medical consultation more useful.

Get urgent help for vomit containing blood, severe abdominal pain, fainting, confusion, severe weakness, difficulty breathing or a severe headache. Seek prompt medical advice if you cannot drink, urinate much less than usual, have a high temperature with worsening illness, or notice yellow skin or eyes. People with diabetes, pregnancy, frailty or a significant long-term illness should ask for advice sooner when nausea is persistent.

Ask what may be causing the nausea, how to replace lost fluid, and whether an anti-sickness medicine is appropriate. Check whether your regular medicines could contribute and ask which symptoms mean you should return or seek emergency care.