There are advocates of saw palmetto as well, which is also untested, but fairly risk free. Regular prostatic discharge is thought to help. A few months ago I had problems with my prostatitis. Now I have the same problem again. It is becoming painful again.
Prostate infections are notoriously hard to cure.
Often antibiotics are needed for 3-5 weeks. Also, the organism must be isolated to ensure proper antibiotic coverage. This will need a prostatic massage and subsequent culture of the penile discharge. Occasionally, surgery will be needed if long term antibiotics are not curative. My Dad has been treated for an enlarged prostate for the past few years.