I treated all 5 of my remaining kitties with the vets recomended Provacta 2 and Royal about 30 mn affter application began having breathing issues eye glazing and shaking of his head well rushing hom to the vet found he was okay probaby just got some in his mouth now however their is a white baldspot where i put the medicine partly on his shoulder do to squirming this bald patch is unique to that area and looks like the airs just been pulled out or was never their. is this a chemichal burn? the previous vet a/ways perscribed actavil (sp?)but i was told it stopped working. do you belive this spot could be a chemichal burn from the meds i took a damp cloth to his neck durring reaction which may have contributed to it being on the shouldr blade as well as between. if it is a chemichal burn is it smart to try a different topical next month or should i switch to a flea collar for him? hes the only one with the blad patch where the meds were put on.