Apple Watch burnt/ had reaction on my skin

"Hi

If you experience redness, swelling, itchiness or any other irritation or discomfort on your skin around or beneath your watch, Apple recommends that you remove your watch and consult a doctor / physician before wearing it again.

Skin reactions can be a result of various causes including:

• Allergies (eg to nickel);
• Extended exposure to irritants (eg soap or sweat);
• Environmental factors;
• Wearing the band too tightly or too loosely (eg causing rubbing).

Irritants can make skin reactions more likely if found between the watch and/or band and your skin. Keeping your watch, band and skin clean and dry can maximise comfort and prevent long-term damage to the watch. It is especially important to do this after workouts or exposure to liquids that can cause skin irritation.

Apple also advises that the watch should be removed from your wrist and turned off if it experiences above-normal temperatures or becomes uncomfortably warm.

Sustained contact with warm surfaces for long periods of time may cause discomfort or injury. Special care should be taken if you have a physical condition that affects your ability to detect heat against your body.

If you are concerned about a potential hardware issue with your watch, contact Apple Support (mail-in service may be available) or make a Genius Bar reservation, including with a view to having your watch checked, if recommended by Apple (under warranty, if eligible):

• Contact - Official Apple Support
• https://twitter.com/applesupport
• Genius Bar Reservation and Apple Support Options - Apple

To check your warranty status (the serial number is on the back of your watch):

Check Your Service and Support Coverage - Apple Support

More information:

Wearing Apple Watch - Apple Support

Keep Apple Watch within acceptable operating temperatures - Apple Support"

Credit to Jonathan UK : Apple Watch Skin Burns - Apple Community.

Thank you for participating in the Apple Support Communities.

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.

It isn't a laser,it's a light sensor.

A small number of people will experience reactions to certain materials. This can be due to allergies, environmental factors, extended exposure to irritants like soap or sweat, and other causes.

The watch does not have a “laser”.

Go see your doctor.