I did not find anything on this topic when I searched so if I am re opening a topic, I apologize.
I am having problems with flies biting my dog's ears and I am interested in home remedies to help with this problem
Picking up the poop is definitely number 1!
You can also get a fly trap and that seems to help some but it has to be for biting flies.
Then it is not natural but if my dogs ears are getting eaten I would use, have used, the goopy pink Farnam stuff. I am not one for insecticides and I would not use this on the nose (which is where the like to go as well) but ........ you know that has to be painful. Fly bites hurt!