Itchy sores on cats neck

Do you have another cat in the house that could be inflicting the wounds?

I have the exact same symptoms with my oldest cat. She is 14 years old. We can not tell if she is doing this herself...or it is one of the much younger cats (two others...one is 1.5...the other about 7 mos old).

***i just took my cat to the vet for this today, she has no flees and is indoor. the vet shaved her neck to see the sores which got bigger. (she looks hilarious) he just cleaned the area, put some ointment (animex i think), and gave her an antibiotic shot. and i have to give her oral pills 2 x a day for 2 weeks...he said its some kind of infection, or dermatitis, that could be from a bunch of stuff. if it doesnt get better hell do a culture and see what it is...fingers crossed shes ok...i read a bunch of forum answers and it could be allergy from anything even food, so i changed the brand of food too....goodluck!

The one area a cat cannot clean is its head. Neck and shoulders. So the cat cannot naturally groom there. I think regular washing would help.