I have what feels like a hangnail on my left index finger. The swelling is on the left side of the nail and started about 4 days ago. I treated it by soaking it in warm water and have kept it elevated when possible and it initially seemed to be improving. Today it is swollen again and the finger tip is now swollen and hard to touch. There is not significant pain when I touch it, and flexing it is not painful, just a little more difficult due to swelling. When should I contact my physician? It seems like paronychia, but it is lasting longer than I would expect.