Hi, my bullie also suffers from allergies, etc, I know exactly what you are going through !! :D
Initially he had a really major allergice reaction to what I've been able tyo find out was round up which they had sprayed around the dog show rings just befor the Royal Hobart Show where he had these lumps which burst and left big holes and major hair loss, thankfully this type of major reaction has not happend again but regulary suffers from the seasonal allergies relating to grasses, pollens, etc. I've personally found that anti-histamines work well. Although there can be side effects they are definitely better than continual cortisone or antibiotics. For my boy Polarmine works really well, maximum dosage is 6mg. Which anti-histamine works for you dog is a matter of trying one to see, I have a list of maximun dosages of anti-histamines including Phenergen, Claratyne etc, if you are interested, which I was given by a veterniary skin specialist by the name of Lynda Vogelnest (who I can highly recommend). She has helped me no end. I didn't go down the vaccine path preferring to try a preventative approach instead.
To sooth the itch I've found that Curash baby lotion or ointment works the best it also reduces the redness too !! Also, something newer that I've found is Resi-Chlor which you can get through your vet.
With food it definitely seems that the more 'natural' type of food the better. I actually give him yoghurt daily which really helps keep his digestive system, etc in balance particularly when he gets yeast infections between his toes. For the wind give him garlic tablets, they really do work !!!!
Good luck !! Never give up hope that something can be done !! With Starsky it took a long while to get him right but it was worth it. He has just turned 8 and is happy and healthy !!!!
