My beloved cat is elderly, and suffers from a heart condition. He is still alert, active, and sort of spastic, like he normally is. We have been battling fleas off and on for a year now, and it seems that nothing is helping anymore. The fleas were completely eliminated and being prevented between late September and now, but they are back again. I find the current re-infestation strange because he does not like being outdoors between late September and mid April.
Currently, I flea comb him daily and destroy every flea I unearth (usually 4-8 fleas per session) and he is taking Hartz UltraGaurd OneSpot Treatment (active ingredient (S)-Methoprene 2.9%) every 3-4 weeks as per instructed, on top of that, we have been using flea powder/vacuuming on the furniture and carpeting. I would bathe him to help the progression, but that is NOT a viable option... last time we tried, he tore my arm, chest, neck and legs apart, not to mention my clothes, the shower curtain, and towels. My sister also owns a dog who shares similar space with the cat. He gets flea baths, which are my sisters responsibility (he is content with bathing).
Despite the treatment, the fleas seem to be getting more aggressive, and my cat is now tearing his fur off and leaving raw spots in their place.
In the past, I have used Advantage on my baby, and it worked wonders, even with only a single dose, I cannot, however, afford that brand right now being a student and all.