Watch burn

See the 'For people who are sensitive to certain materials' section in:

Wearing your Apple Watch - Apple Support

"If you experience redness, swelling, itchiness, or any other irritation, you may want to consult your physician before you put your Apple Watch back on."

Thank you for participating in the Apple Support Community.

We want to make sure you reach the right team for help with your device. We recommend that you contact Apple Support directly. Depending on your region, you may be able to reach them here: Get Support.