I am at my wits end and I’m about to give my 11 year old’s bird away. He will be devastated. His cockatiel has bird mites and they won’t go away no matter what I do! I’ve hired an exterminator who was knowledgeable and had his own birds. I’ve scrubbed the cage weekly. I’ve treated the bird with Ultracare Mite and Lice spray. I e had the bird treated at the vet. I’m desperate! Please help!