http://www.juicing-for-health.com/bitter-gourd-benefits.html
Pay special attention to this:
Piles: Mix three teaspoonfuls of juice from bitter melon leaves with a glassful of buttermilk. Take this every morning on empty stomach for about a month and see an improvement to your condition. To hasten the healing, use the paste of the roots of bitter melon plant and apply over the piles.
I don't think i can get bitter melon leaves from supermarket or even the roots. So if anyone has access to such, and you absolutely game for this, go try it out and let us know!