Fillers are medical devices and should be done by doctors whose specialty provide study of the human facial anatomy and the muscles of the face, their function, and the blood supply to the face and the location of the major vessels. An ""Injector"" does not necessary have that type of extensive training, and many medical specialties do not have that either.Having said that, complications can happen, the important part is to be able for the doctor to be available, and treat or refer for the appropriate specialty any complications.You prolonged pain,, is not normal. Call you doctor to be seen ASASP
