Do I have ridging scars? (Photo)

Hey, 7 months ago I had a hair transplant. I noticed after 3 weeks from the day of the surgery that hills start to form in the skin, and redness in the transplanted area and I started to worry that I was starting to develop scars. Month after, I went to consult a dermatologist and he told me that no scars will be formed and that it is an inflammatory reaction, contact dermatitis and a demarcated erythematous plaque. Do you think it's ridging? Is dermatologist enough to diagnose this thing?