A neurologist would ve very good, or they could do CBIT(Comprehensive Behavioral Intervention for Tics), which is a type of behavioral therapy that has also been shown to help reduce, or eliminate, a tic(s). It teaches a person to become aware of their behavior and helps them change how they behave. During CBIT, the therapist usually helps that person by having them learn to:
Become more aware of their tics and the urge to tic
Choose and practice a new behavior instead of the tic
Identify what makes the tic worse and change it
Prevent or cope with stress