You should make an appointment to see the physician who performed your bear transplant. You possibly have folliculitis that can be treated using oral antibiotics or topical meds. If you cannot get back to the transplant surgeon, then definitely make an appointment to see a dermatologist.
Follow up with your doctor if you are concerned about your scarring or "marks". It may or may not be permanent. It may take several more months for it to fade.
Beard hair is a genetic trait. There is no medication to grow a beard. Some try topical minoxidil but you would need to use it everyday and there may be side effects. You should see a doctor before starting such treatment.
