Capsaicin is the compound that makes chilli hot. Applied to the skin repeatedly it depletes the chemical messenger that nerve endings use to signal pain, which is why it works for joint and nerve pain rather than for a fresh injury.

What Capsaicin Is Used For

Osteoarthritis pain in the knees, hands and shoulders
Nerve pain, including diabetic neuropathy and after shingles
Muscular aches and stiffness
Warming balms and patches

Common Side Effects

Burning and stinging, strongest in the first days
Redness at the site
Coughing if the fumes are inhaled

Precautions

The burning usually settles after several days of regular use, and stopping and restarting brings it back, so consistency matters. It needs two to four weeks before the pain benefit appears. Wash hands thoroughly afterwards, or wear gloves, and never touch your eyes or face after applying. Do not use it on broken skin or with a heating pad.

This page is general information only. It is not a substitute for advice from your doctor or pharmacist, and it does not include dosage. Always follow the directions given to you and read the leaflet inside the pack.