Your Anesthesiologist manages your level of consciousness and sleep during a surgery and also monitors vitals such as Heart Rate and Blood Pressure during the procedure.
Though side effects vary depending on the type of anaesthesia used, common side effects include headache, pain at the injection site, and nausea and vomiting.
Specific instructions about eating and drinking depend on multiple factors including the site and duration of your surgery. In general, you should refrain from eating at least eight hours before your scheduled procedure to reduce side effects related to an aspiration.
You must inform your doctors regarding any known allergies. Adverse reactions from drugs during a surgery can be life-threatening.