Red patch: Even though the patch isn't itchy it still could be an allergic response or slight irritation/inflammation from something that comes in contact with your neck(ex. Clothing, chains, cologne). You could try applying a cortisone type cream or ointment to see if resolves. A physician or dermatologist would have to examine the patch in order to advise you.
Answered 6/17/2016
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A doctor has provided 1 answer
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