Hello everyone, about 3-4 months i noticed that my cat has fleas. So i bought him some flea control pill called protektor. After applying the first couple of days i noticed some dead fleas where he lays. But after 2 weeks he didnt stopped scratching. So i went to the shop where i bought the protektor, and the guy who works there told me to take him there, so when i took him, he applyed again some flea pill but i didnt asked what brand. But he never stopped scratching. I cant find fleas when i look, plus he has long hair and its impossible to see them, except for that white spot (on the white spot i cant find any). So now i bought him flea collar, but now im reading online many cat owners warning that is dangerous, and they have problems. So im asking for some advice, im thinking to put the collar on him for 1-1.5 week and then throw it. This is the collar: And here is the beast Cheers!