[Maximo]

I feel far safer using Frontline on my dogs than any flea and tick collar. There have been 2 recent cases here on YT of Yorkies having terrible reactions to flea collar. The dogs were vomiting, lethargic, losing appetite and having seizure like episodes.

With multiple dogs, I would be concerned about collar chewing.

I hate the Frontline too and I resist using it, but as I have written -- seeing the misery that a couple of fleas can inflict, I won't risk an infestation. The stress caused to the dog by fleas is worse than the chemicals of Frontline and some other products. Stress weakens the body and negatively impacts health.