I would not recommend using Retin-A at all because it will cause irritation and burn to the face.

CO2 laser when properly performed without complications should result in thickening of the skin because of the new collagen tissue that gets deposited in the skin.

The raised skin is a scar. These scars are caused by excessive tissue formation. The dermatologist who removed the tattoo should see it and suggest treatment.

You can, you might have to wait a few weeks until the lasered area has healed. It also depends on how much of the old tattoo is completely removed from visibility in order for the tattoo artist to do a new tattoo without the old one showing up.

Since it targets the muscles under the facial skin, Juvederm injection affects the structure of the face. However, bruising will typically subside within 3 days to a week is proper care is administered after the injections.