2 months ago one PRF treatment done under my eyes. One side has a dark shadowing now; much worse than before. What is wrong?

It is difficult to determine the exact cause of the dark shadowing under your eye without a proper examination. However, it is possible that the PRF treatment caused some discoloration or unevenness in the skin.

It is important to discuss this issue with the healthcare professional who performed the treatment. They can evaluate the area and determine if any further treatment is necessary. Depending on the severity of the discoloration, they may recommend a follow-up treatment or suggest a different approach to address the issue.

In the meantime, it may be helpful to use a concealer or other makeup to help mask the discoloration. Additionally, taking good care of your skin, including regular moisturizing and protecting it from the sun, can help improve its overall appearance.

Best of luck !