Apple watch causing rash/burn

if it was me then I would stop using it immediately

these forums are user helping other users like yourself, it's sort of going to a physical apple store and asking other customers there advice

few of us random internet users would be qualified to provide you with medical advice, in terms of rash or allergies, so you really should consult a physician and not use the watch again before you sorted out the issue.

others have posted posts like yours, but the wast majority of us have never experienced anything remotely like this.

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