Complications happen. Different people vary in their responses to surgery and different doctors vary in their experiences and preferences.
One of the most helpful things you can do if the unexpected comes to pass is to try to maintain a civil working relationship with your surgeon.
All surgeons are trained to deal with the common complications. If a complication is unusual, a reputable doctor will usually refer you to a practitioner with a higher level of expertise.
Always follow your doctor's advice. Don't panic and begin running office to office; your confusion will quickly escalate out of control.
If you do lose faith in your surgeon, there is nothing wrong with requesting referral to another eyelid specialist.