It is never easy to handle a scared or a terrified pet. But some ways of managing the fright could be:

To take Short car rides to pleasant places, such as a park can take away some of the fear of the unknown.

Speak to your owner about working with some non-stressful office visits (maybe just a quick peek in the waiting room to get a biscuit!) to help the pet be more manageable when or if the need arises. Communication with owner as to  how to handle pets could prove beneficial.

Talk with the owner about pre-visit tranquilzers or other in-office methods for a calm exam.

Choose quieter times of the day, when extra technicians are available.

Another option to avoid veterinary office stress is to find a mobile veterinarian.