I’ve struggled for months with finding the reason & cure for my dogs persistent scratching, licking & chewing, thinking it couldn’t possibly be flea allergy because I was using the trusted Frontline treatment on her. Even the vet told me it was either food allergies or something she comes in contact with outside. When a change of diet didn’t cure it, I paid a high price for routine allergy shots. When that didn’t work I changed vets only to learn their office had been swamped with clients with the same problem & apparently fleas had become resistant to Frontline so this vet now offers Comfortis flea treatment, which I’m going to try when my dog is due her next flea treatment. If you search this Frontline question on Y Q&A, you’ll find members claiming Frontline hasn’t been working as far back as a year! What a waste of money & such unnecessary extended discomfort for these pets!
Anyone else here having the same problem with Frontline? If so, what have you found to work best for your pet(s)?
Considering ‘mcally’s answer, I wonder if only fleas in certain areas have become resistant to Frontline? Or perhaps a defective batch of Frontline was shipped to certain areas? I never had a problem like this in the 10 years I’ve used Frontline but’s it’s definitely a problem among pet owners now, here in Missouri.

Recently my 9 year old Maltese terrier had been loosing his hair. It was to the point where he was completely bold in the face legs and one of his ears. We took him to the vet and now he has been on a course of antibiotics and chodasone and a medicated shampoo which looks to have helped as he is growing his fur back slowly. The Vet said it looks like an allergy and so treated him accordingly. I noticed today that my other dog is looking her fur?? On her elbow, ears and next to her tail? It isnt inflamed or red but she is itching a little. I flea treated her and she is wormed. Could she have an allergy too??? My third dog hasnt anything wrong with him. Whats happening to the two?? Is this just an allergic reaction what else could it be??? I did mention to the vet if it could be mange but he said he doubts it. I dont know what to do in the beginning I did treat ALL my dogs for mange when I discovered my 9yo was loosing his fur.
Please has this ever happened with you??? What was it???

My dog is loosing his hair. I have had him to the vet because he suffers from allergies and he gets a shot every month. Now he has fleas, the itching is worse and I don’t want to drug him up. He’s a black lab.