Get emergency medical help if you have signs of an allergic reaction to Qutenza patches: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Wash the skin and get medical attention right away if you have severe burning, pain, swelling, or blistering of the skin where you applied this medication.
Stop using Qutenza and call your doctor at once if you have:
skin redness where the medicine was applied; or
trouble breathing or swallowing (after accidental inhalation of capsaicin odor or dried residue).
Less serious side effects may include a mild burning sensation that can last for several hours or days, especially after your first use of Qutenza.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Qutenza side effects (more detail)
