As someone who has had them I can recommend a few things in more detail. However I have not tried all of these personally.
-The leaves of
BearBerry Arctostaphylos uva ursi, or
Arbutus uva ursi help reduce the pain of Kidney Stones and prevent UTI's; It is best taken as a tincture.
-
Cleavers Galium aparine when used in a tincture or juiced (but not boiled) help dissolve kidney stones and clear blockages.
-The
root of
Fennel Foeniculum vulgare and
Parsley can be taken as a decoction for UTI's and kidney stones.
Queen Ann's lace Daucus carota is another option but must not be taken if pregnant or nursing.
-For less acute kidney stones
Golden Rod Solidago spp. is an option for preventing stones in the long term. Drink as a tea or eat as salad. Be aware that it is a diuretic and
should not be taken if pregnant or nursing.
-
Lemon juice helps dissolve certain kinds of stones and
cranberry juice can help prevent UTI's and dissolve stones.
Avoid eating foods high in calcium such as spinach and high sodium foods. Avoid licorice.