Help Sick Maroon Clown

[marmari]

Our clownfish Lori has been sick for about a week. Looked like dying, didn't eat(still doesn't eat), when I put her into a Quarantene. I must mention, that within last week, I suddenly lost 3 fishes, most likely to some disease. As you can see on the picture there's some whitish big spot(not ich) shaped like a line, on her side. I am relieved to see that it's been improving a bit, after I started her on copper(cupramine by seachem) and aloe stress coat, and a bit of garlic extract by seachem. I've added a little bit of cyclopeze to the water and I've no idea if she ate any, I have a friendly Chromis damsel in with her who obviously couldn't ignore a treat. She refuses solids, tried bloodworms. If you look at her stripe, there's obviously something going on there! Some grain like growth? Please refer to the picture.
Please, please help save her life, she's been so brave fighting this, and I refuse to give up on her. What is this that she has? Anyone? Please, what can it be and what medicine will I need?
Thanks a lot!