The reason: The exercise will accidentally cause the blood vessels in the sinuses to dilate or narrow. People with sinusitis or allergic rhinitis also experience this. What to do: Exercise in an air-conditioned gym. If you practice outdoors, you should only practice in open spaces, rich in green trees. Try to avoid the road, as you will have to face dust and smoke.
Why: When exercising, the heart pumps more blood, causing the blood vessels to expand. This process can inadvertently activate the nerves, sending the itchy signals to the brain. What to do: Go to practice regularly. Your brain will get used to that, helping the itch to disappear. If you practice and then take breaks between sessions, you are at greater risk of itching, but if it feels intense every time, consider seeing a doctor, as you may have it. A “motor allergy” is very rare.
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