Modified Botox hope for long-term pain relief for patients with nerve injury

Researchers in the UK and the US have engineered Botox to provide pain relief without inducing paralysis or producing adverse side effects.

Modified Botox offers hope to those with chronic nerve injury pain (Kirsty O’Connor/PA)

Scientists have developed a modified form of Botox that could give long-term pain relief to patients with persistent nerve injury.

Botox is the brand name of a muscle relaxant that is injected into the face in small doses to smooth out lines and wrinkles.