How to treat the fleas naturally

one of my puppies the newest Scoop. is allergic to the conventional flea medicines
one of his litter mates almost died from it. so i was in a hard position i knew i couldn't treat him with the regular meds. so I had to figure out something else.
so with a little research and the sacrifice of my favorite hand mixer i embarked on
research.what i came up with is a salve made of fresh rosemary and bag balm. so far it works great. Rosemary kills all stages of fleas. including the eggs the bag balm was use for its skin softening and as a delivery system for the rosemary. its a little greasey until the balm soaks in but it is the safest alternative for my little scoop he is much happier and less itchy. so i'm happy becouse he is comfortable.
I wrote this in the diary in case anyone else had this problem you could try it .

Oh by the way I gave the hand mixer a proper burial in the back yard. lol