You didn't mention if your cat has been to the vets yet. It's obvious there is some form of dermatitis going on or something else. If you have been to the vet then the collar must be left on to give the medication a chance to work. If you haven't been to the vet for a diagnosis on your cat please do so as soon as possible.
Put an antibacterial on her wound lilke anti-biotic cream. It is a natural thing for an animal to scratch or lick a wound. Their saliva contains a natural disinfectant.
Sometimes its to keep them from scratching, biting, or licking a wound or infection.
The function of a cone is to keep the animal from scratching/biting/ licking the affected or injured or area that has had surgery.
You can train your dog to stop bothering his wound
Cone thread is thread typically used on an overlock "serger" machine. It is thread wound on a cardboard or plastic cone, and is much bigger than a standard thread spool.
The wound probably has to be isolated, either by the bandage or by an appliance such as a cone or inflated tube. This will prevent any direct contact with the skin surface. To prevent biting, you can use a product called Yuck. They sell it at the pet stores. You just spay over the area and dogs don't like the taste or smell of it so they won't scratch or bite the area.
Use trigonometry
that depends where the scabby part is, if its biting it then put a plastic cone on its head (ask a vet about the cone) if its in a scratchable area then put gauze on it wrapped around the wounded area.
Cone collars seem to work well. They go around the dogs neck, such as a normal collar, but they have a large plastic cone that blocks the dog from licking, biting on its body, or scratching at its head.
The 4 techniques use for partially or completely decorating a cake without using a pastry bag or paper cone are piping bag fitted with a fine writing tip, botanical dyes, sturdy plastic baggie with one tiny corner snipped off, or a syringe.
Elizabethan collars, or more commonly known as e-collars, are often used in veterinary medicine and sometimes referred to as a cone, lampshade, or "the cone of shame" as in the movie UP. These cones are used to prevent dogs and cats from biting, scratching and licking wounds, incisions, or other injured areas. Cumbersome and sometimes uncomfortable for the pet, we now have new versions of this tool that are a nice alternative for many pets. Traditionally purchased from your veterinarian post-surgery or after cleaning up a wound, hot spot or other injury, these collars may now be purchased at many pet supply stores.
You can put a towel around the neck and tape on to prevent scratching. You can buy power paws:- woodrowwear.com/why-socks-for-dogs/
crushed ice