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This infusion of heat stimulates blood flow and improves mobility. Far infrared has even been known to help diminish acute pain from pinched nerves, sciatica and can even aid in relieving the pain of passing kidney stones.
2 doctors agreed: Heat slows nerves: Please get an eye exam if not done already. Tough to answer not knowing the cause of the headaches. But if the blurred vision is due to a problem with your optic nerve behind the eye, then applying heat would make vision worse because heat slows down nerve signals. So please see your doctor to make sure you do not have a condition called optic neuritis.