|MadSci Network: Medicine|
I don't know why,your ear or ears become red. Parts of our bodies may flush in response to anxiety or stress, and it can be an individualized pattern. This may mean for some folks the ears, others the face, and still other face and neck. Some people's bodies respond not by flushing but increased perspiration. Occasionally, medications or foods can cause flushes- a common example is niacin. I don't know why you have flushes at a certain time of day unless it is in response to a certain medications, food? But, stress is a common etiology of flushes.
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