I am unsure if dried juniper berries would be best for your treatment, but at the least the oil, extract, tea, etc could find you benefit. If you do get the extract, I would research how much sugar exists within it.
I think its a promising herb you can try, but with the dried berries, the main thing you should worry about is the mold content. If you made a tea with the dried berries, the boiling of the water should kill most of the mold…but be very careful with this stuff in general and be aware of any symptoms.
I take a homeopathic called juniperus communis and juniper has a ton of benefits that should not be overlooked.