How do you treat allergic reaction to quinine?

To treat an allergic reaction to quinine, first, discontinue the use of the medication immediately. For mild reactions, over-the-counter antihistamines can help alleviate symptoms like itching or hives. In cases of severe reactions, such as anaphylaxis, administer epinephrine and seek emergency medical attention. It's essential to consult a healthcare provider for further evaluation and management options.