Hi. I just treated Thor for fleas. I think the most important thing to do is address it RIGHT AWAY, before there is an infestation. I assume you just want a topical treatment for now, rather than putting him on a monthly med.
To check for fleas, get a flea comb, or go through his hair very carefully. Obviously, if you see a flea, he has fleas. If you find black specks that look like dirt, put a tiny bit of water on them. If they turn red, he has fleas - the specks are flea poop, which contains blood.
I took away all the fabric Thor had sat on. I put it in a closet for now, I still need to vacuum them. I've seen it recommended that you put a flea collar in your vacuum bag to kill the fleas if they are sucked up - otherwise they can get out.
To treat Thor, I washed him in Dawn dish soap. I put a big ring of it around his neck so they couldn't jump up to his head. Then I worked down. After the bath and drying him, I put a lamp very low to the ground with a big, flat dish of water. Supposedly fleas will jump towards the light (at night) and drown in the water. I ran a flea comb over him again to make sure the black specks were gone.
It's been a few days and Thor has continued to scratch, even though I can't find fleas.
I don't know at this point if he is scratching old bites, or if he has an allergy since I just switched his food. It's perplexing.
