This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to relieve dry socket
Recognize the symptoms.
You may also be able to see that all or part of the blood clot in the socket is missing. You may even see bone below.

[I] This does not hurt but will warrant consultation with an orthopedic surgeon. This will allow you to properly assess your socket and help you clear it up on your own.; [II] You may see : A lump to the upper left nipple part of the socket due to missed bait/pull. This area will take anywhere from 2 to 5 days to heal.; [III] This is called " tendon gain ". Underlying causes of socket loss are: arthritis or trauma caused by insufficient blood supply to the area, arthritis, or a form of injury.; [IV] Symptoms include : Pain that increases a few days after the tooth was removed. The pain may radiate from your socket to your ear, eye, temple or neck.;
The answer is:
[IV]