My name is Marlena and I have a two year old Russian Blue named Charlotte. I got her just over five months ago. About three months after I got her my mother got her a Hartz flea collar. She was doing great before I put the flea collar on her then about a couple of weeks ago I noticed that she started licking herself more than usual. After about a week of licking she started biting herself more than usual. Then about a week ago she started scratching way more than usual. I though that it was just because that’s what cats do, beings as though she’s my first cat. So when she would lay with me I would rub her head and neck and I noticed that she has scabs all over. What I did first was remove them but then I was told not to because I could irritate her more. So I sprayed her with Hydrocortisone Spray and stopped picking them. Now when I go back to rub her, I noticed they are getting worse. I don’t know what I should do, I don’t have the money for the vet or the expensive flea control medications. I only have enough money to buy the Hartz Ultra Guard Pro Flea and Tick Control. But I have read so many reviews and don’t wan’ to use it or would it be safe? I need help on what I should do so please help.