^^^agree
sounds like there is some mouth rot there too. If you are in a warm area some outside time would be benificial and uping her temps a few degrees to aid her immune system.
Lots of water and maybe soft feeders like silk, horn and butter worms.
Some extra calcium ( maybe some liquid calcium glubonate ) cant hurt and a good fresh UVB bulb. Keep the cage very clean and look around at your options for the best vet for your cham, Reptile/chameleon experince is a must.