Hives? Headaches? Uncomfortable GI issues? Histamine might be the culprit. While some histamine is essential for certain processes in the body, too much can lead to odd, uncomfortable, or downright painful Frontiers Why drug exposure is frequently associated with T cell mediated cutaneous hypersensitivity reactions Glutathione Injection Side Effects Explained Can Glutathione Cause Itching? Understanding the Effects of This Powerful Antioxidant Cymbiotika CYMBIOTIKA