Please do not hesitate
I found some people are very hesitant about their doctor's diagnosis. Maybe some of them are their friends or very famous and they don't want to hurt that doctor's feelings. In reality, there is no such thing as the best doctor, despite many hospitals or clinics claiming that. But unfortunately there is such a thing as the wrong doctor — maybe for you.
Your physician needs to be knowledgeable and experienced. More importantly, this professional should listen well, make you feel comfortable, understand your emotions and lead his team in managing you or your relative's illnesses. Today, it is the team approach strategy everywhere.
Sometimes higher medical certification is no guarantee that your doctor will practice high quality and cost-effective care. In fact most specialties now require periodic recertification. Time has come that clinicians need to be provided evidence that he or she has kept current with new developments as treatment is changing and becoming more and more expensive.
Well, those who are going abroad — they need to be aware about foreign doctors as well. They are also not always perfect. And language is a significant barrier in treating a patient. If you cannot explain your symptoms/problems properly, it is going to be very difficult to get a good result. Some countries have become too much commercialised and sometimes ignore our patients' main complaints. So, one needs to be aware of the proper specialist and the proper place of treatment. Do not be hypnotised by a hospital's architectural figure or shiny advertisement.
Above and beyond, if you have many diseases and see multiple physicians, they should coordinate with each other. A good doctor should not become angry or upset if someone requests a second opinion.