PDO Threads under eyes LUMP after treatment 6 days post op, what is this? (photo)

I had PDO Threads under each eye 6 days ago. The next day a lump appeared under my eye where the nurse had injected the cannula and inserted a thread. The other eye is fine. Please can anyone advise me what this is ? I have been back to the aesthetic nurse and she also had a lump under her eye after administering the exact same procedure on herself! Obviously I wish I had never had it done. It looks particularly bad in certain lights. I would greatly appreciate any advice. Thank you