An allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance called an allergen. Allergies occur when your immune system reacts to a foreign substance such as pollen, bee venom, or pet dander — or a food that doesn't cause a reaction in most people. Dr. Gajveer Singh Ruhal provides the best treatment for allergies. To book an appointment call us now! 9871062454
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