Enlisted Medical Chalk Talks

What are some short 10-15 minute lessons y'all do for your enlisted medical (Corpsmen/Medics)? I'm looking for things that they'll find either interesting, useful in their job, or both. This is separate from skills training. Stuff like acute pain control, back pain red flags and what they mean, the approach to a red eye, upper respiratory/sinus complaints, "it burns when I pee," etc.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Military Medicine Source Type: forums