o and wormout gel never heard of it ,i would try a different vet your vet should of reccomended something safer and better than that ,your vet mustnt be very experienced in dealing with birds,this can happen a lot even in northern ireland we have lots of vets wouldnt know a pigeon if it bit them, a lot of good fanciers on this site know as much about pigeons as any vet,a good pigeon fancier has to be his own vet.