Assuming they would react to drugs the same way a human would a guide to the common edible and medicinal sea plants could help.
And what about NaCl liquid?It is like sea water solution used for washing out the wound and better healing (NaCl) = 0,9%)
For medical purposes, saline is often used to flush wounds and skin abrasions. Normal saline will not burn or sting when applied- Saline is also often used for nasal washes to relieve some of the symptoms of the common cold.
Here's a link for some sea salt remedies http://www.earthclinic.com/remedies/sea_salt.html
