Dear Ted, For the last 2 years my 4 pound Yorkshire Terrier Gigi, has a bad case of fungus that covered her whole underside. I have taken her to several Vets and tried everything they suggested and no lasting improvements. A month ago I tried your Mange formula. I have used it daily and only parts of the fungus would go away. She has no fur on her legs, nor underside and the itching is pitiful to watch. Could you please tell me what could have caused this? Also is her ph level a problem to contend with? Any other thing you feel I should be trying? I don't know where to go from here as I am open to any suggestions as I feel you are our last resort. Please contact me any way you choose. I appreciate your selfish love and concern for all of God's creatures - 2 and 4 legged. May you be blessed - today - tomorrow and always.