Bandaging

Slings 

Head Bandages
The video above demonstrates how to apply a bandage which holds a pad in place over a wound to the scalp.  

In this video, the first aider demonstrates how to bandage a forehead wound.  He also demonstrates how to use a bandage to absorb blood in the event of an injury where there may be damage to the skull, and where applying a tight bandage may risk further injury.
Bandaging Sprains and Strains
The best practice, when bandaging a sprained wrist is a combination of the two approaches described above.

Remember the PRICE protocol.  Protect the area from further injury.  Rest the injured limb, apply ice (or a cool pack) for 10 minutes at a time, using a bandage to hold the cool pack in pace, remembering NOT to have the ice pack or cool pack in direct contact with the skin.  Elevate the limb while the cool pack is in place.  

You might repeat this a few times, with 5 minutes or so in between applications.  Finally, apply a roller bandage, ideally so that it provides support right up to the elbow ... this helps to control swelling.  

This is explained well in the following video (sprained ankle), however in this video the first aider appears to suggest leaving the ice pack in place permanently.  This would not be good practice, so, again, my advice would be to apply the cool pack off and on for about half an hour using the technique described in the previous paragraphs, and then finally bandage from foot to knee to control any swelling that may still occur.

Bandaging Cuts and Grazes
© Copyright Simon Watson