Can I take throat lozenges to relieve dry and itchy throat before the physical examination?

Before the physical examination, it is generally recommended to take throat lozenges to relieve dryness and itching in the throat, but it is important to choose products that are sugar free and do not contain special ingredients. The main function of throat lozenges is to alleviate symptoms of dry and itchy throat, and their ingredients usually include soothing agents such as menthol and eucalyptus oil. Sugar free throat lozenges do not affect blood glucose test results, and taking a small amount does not significantly interfere with basic items such as blood routine and urine routine. Some throat lozenges may contain local anesthetics such as benzocaine, which may temporarily alter the condition of the oral mucosa, but usually do not significantly affect physical examination indicators. If throat lozenges contain cough suppressants such as dexmedetomidine, they may interfere with the interpretation of respiratory system related examination results. Within 2 hours before the physical examination, avoid taking throat lozenges containing staining agents to prevent affecting mucosal observation during endoscopic examination. If you need to relieve throat discomfort before the physical examination, it is recommended to choose sugar free throat lozenges with simple ingredients and control the dosage to 1-2 pills. At the same time, maintain sufficient drinking water and avoid excessive use of voice. If you are undergoing a specialized throat examination or need to take blood on an empty stomach, you should communicate with your doctor in advance to confirm. When abnormal indicators are found after a physical examination, it is necessary to proactively inform the doctor of the use of throat lozenges in order to accurately evaluate the results.