Listerine

No - while rinsing may briefly ease discomfort, mouthwash cannot treat a tooth infection, abscess or the underlying cause of toothache, which need a dentist. If you have persistent tooth pain, swelling or signs of infection, see a dentist as soon as you can.

Used as directed - swished and spat out, not swallowed - Listerine is safe for everyday oral hygiene for most people. If the alcohol-based versions sting or dry your mouth, an alcohol-free option may suit you better; keep it out of reach of young children.

Some Listerine mouthwashes contain alcohol, while others, such as the Zero and alcohol-free ranges, do not. If you prefer to avoid alcohol, look for the alcohol-free label on the specific bottle.

That sharp, tingling sensation usually comes from the alcohol and the essential oils that give Listerine its antibacterial action, and it fades quickly. If you find it too strong, an alcohol-free or milder variant gives a gentler feel.

Used alongside brushing and flossing, Listerine can help freshen breath and reduce plaque and the bacteria that cause gum problems. It is a useful addition to a good routine rather than a replacement for brushing.

Everyday Listerine is much less likely to stain than some medicated mouthwashes such as chlorhexidine, but heavy long-term use of any mouthwash can contribute to surface staining. Regular brushing and dental cleanings keep staining in check.

Pour out the amount shown on the label, usually around 20ml, rinse around your mouth for about 30 seconds, then spit it out - do not swallow it. For the best effect, avoid eating or rinsing with water straight afterwards, and use it as an addition to brushing rather than instead of it.