A 3-pound injection could prove priceless for partners of loud snorers, as the jab can help cure snoring, says a British doctor.

The two-minute ''snoreplasty'' involves injecting a chemical called sodium tetradecyl into the roof of the mouth.

It acts as a hardening agent that stops the soft tissue at the back of the mouth from vibrating.

Hadi Al-Jassim, the consultant ear, nose and throat surgeon pioneering the treatment in Merseyside, said: “The injection is cheap for the NHS to use and it is effective.”

Al-Jassim, who works at the Southport and Ormskirk district hospitals, has already treated 400 patients with the treatment, reports The Daily Express.

The jab can be given up to three times a year but some people find one dose is enough to stop snoring for a year.