To cure feather plucking, you will have to first identify what you think is the cause of the destructive behavior. Consulting with your veterinarian will help you narrow down the potential causes. Here are some ideas for treatment, depending on what you find:
Disease and pain: Your veterinarian will know best. Follow his or her instructions and hope for a quick recovery.
Behavioral: If you suspect that your bird is bored or lonely, try giving her new toys to play with, or spending more time with her. When you feed her, try changing the way you give her food so as to make it more challenging.
Habitat: Try moving your bird’s cage to an area with lots of light and consider using a humidifier to raise the humidity. You should also think about moving your bird to a larger cage.
Diet: Try to vary your bird’s diet by giving her fewer seeds and more vegetables or other foods.
Allergies and toxins: Identify the cause of the allergies or toxins and remove it. Make sure your bird’s diet is allergen-free and his cage is not near the kitchen or cigarette smoke. If you think your bird has heavy metal poisoning, try moving her to a cage with non-toxic bars and make sure to not give her any metal toys.
I would try new things like getting new toys and if in about 3-4 days you don't see any improvement then take her to the vet to be safe
