Hard to say: Difficult to say without seeing the rash. Reaction to an insect bite is often a cause. If you live in an area endemic for Lyme disease and have been around low lying shrubs or tall grass Lyme disease is a possibility. Various other causes are also possible. If concerned you can have an online consultation at Health Tap. You would upload several images, including close ups in good focus.
Answered 3/2/2016
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A doctor has provided 1 answer
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