Vitamin E therapy has been used to treat Kearns-Sayre syndrome
No and No
Alcohol withdrawal syndrome can be treated at home or in a hospital or treatment setting
Costen syndrome refers to a joint disorder, it is treated by medicines to relax the muscles.
No, Williams syndrome is not life threatening but can be if not treated with the correct medical care
Fanconi's syndrome is best treated by attacking the underlying cause whenever possible. For example, when cystinosis is treated with the drug cysteamine to lower cystine levels in the body or Wilson disease is treated with.
Thiamin
Carpal tunnel syndrome is initially treated with splints, which support the wrist and prevent it from flexing inward into the position that exacerbates median nerve compression.
Pickwickian syndrome is entirely reversible if it is diagnosed and treated properly. If the problem goes undiagnosed, the outcome can be fatal.
Because Klinefleter is a problem with the chromosomes, it cannot be cured. Therefore, treatments for Klinefelter syndrome focus on controlling the symptoms and features of the disease. There are only few treatment for this syndrome.
What you're describing could be Reye Syndrome.
Turner's syndrome is not curable. It can be treated though. Growth hormone injections can be given to increase height. Hormone replacement therapy can then be taken to initiate puberty and continued from then on. Infertility caused by this syndrome cannot be treated, however it is possible for a woman with Turner's to go through IVF with a donor egg.
If causes related to diet, metabolic abnormalities, and medication have been excluded or treated, therapeutic medications may be helpful.