Although not all our aquarium inhabitants are from Hawaii, this book is a nice reference. The book covers anemone stings, coral cuts, fireworm stings, scorpionfish wounds, etc. All of us will experience at least one of these events at some time. Excerpts can be found online and Amazon has used copies for as little as $12.96. At the very least book mark the following links to the excerpts:

http://www.aloha.com/~lifeguards/alsting1.html
http://www.aloha.com/~lifeguards/alsting2.html
http://www.aloha.com/~lifeguards/alsting3.html

This book is available here: All Stings Considered: First Aid and Medical Treatment of Hawaii’s Marine Injuries

Paperback: 233 pages
Publisher: Univ of Hawaii Pr; 1 edition (June 1997)
Language: English
ISBN-10: 0824819004
ISBN-13: 978-0824819002

The entire book is available on Google. I found the excerpts more useful.