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Thanks for the question and coming here. I would like to have few important details. Where you have the injury? There is any pain? You are having any symptoms?
Thanks for the details. I would suggest to apply ice on bruise for few minutes. Also If there is severe injury on your left arm then I will suggest to see your physician or visit ER for urgent x-ray to rule out any fracture. Early evaluation is suggested due to significant injury on the arm.
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