Does that place look like a reddish patch or an irritated area?

They look like little red bumps scattered around my shoulder blade. The surgery spot looks like it is healing, but it still itches even 7 months later. The doc said it heals from the outside in and it's the center that itches.

Complete healing of the skin takes time. The healing process continues in the skin for a full year.
Occasionally superficial skin nerves are cut during surgery, which results in localized numbness or loss of sensation to a small area around the surgery site.
The nerves will grow back,but, the time it takes vary.
As the healing process proceed tingling and/or itching may be felt.
This may last 6 months or more after surgery, but everyone is different and the duration of these symptoms can vary markedly among individuals.