You have loads of chances to recover your hair. The best to do is to consult with a professional who will indicate you which
treatments are good for you.
You are still on time to recovery your hair. If you didn't started any treatments yet,
you shold consult with a professional as soon as possible. Do not miss time.
I don't think any lotion or drug can help you on this stage. It is a little late to start with one of those treatments.
You should consult with your doctor. I suggest you to take a look to the surgical