Alright all you knowledgeable people! I have a good friend that has rescued two dogs from a bad owner and they have turned out to be heartworm positive. She wants to go the alternate route when it comes to treatment(I don't blame her). She has done a bit of research and Im not sure what exactly she is trying right now, but what are some suggested alternatives to treating heartworms? We are in the south so mosquitoes are prevalent here, and I wouldn't mind storing some information away just in case something happens with my girls.