Oh dear ..... that really sucks big time, @shann ..... shame you are allergic to honey/bees! :(
How about Silver Dressings? They used one regularly on an open ulcer on my hubby's leg & it aided in closing it fairly quickly .... when nothing else worked. (We hadn't tried Medical grade honey or other options above tho!) Usually the Community Nurses administer it every few days ..... it could be worth a question to the specialists?
http://www.woundsaustralia.com.au/journal/1304_01.pdfAll the best ... thinking of you xxx