PRP - 2nd Procedure with Significant Swelling

47 yr old looking to restore collagen to help appearance of skin, reduce wrinkles and acne scarring, add volume etc.. I had my first procedure with no complications. For my 2nd procedure she used larger tubes and it contained a different "preservative" that is published on the web as a known for these type of procedures. I am not sure if it's just due to the larger volume or having the procedures done too close together, but I do have significant swelling this time and hopeful it will resolve quickly. They think it is an allergic reaction but no itching or swelling. Results are TBD, will update again.