What Is The Cure For Chronic Fungal Candida Infection?

I have had constipation from since I was a kid and now I am 30 years old I never paid that much attention to it but, Now it is impossible to go to the men's room I have to get an enama just to be able to feel lighter but its not a perminent solution, I have to drink litres of milk just to go to the men's room and some times it has bleeded from my anus, I have burps 24/7, I get migraines,headaches,my teeth are getting infected all tho I brush everyday, and I always have a craving for sugar and I was researching on the internet and the recent doctor told me that it seems like I have chronic fungal candida infections and now I am very worried about everything, What if this is dangerious or could this have been transfered to my child, Local doctors here can't seem to dignose me, I am always told i only have normal constipation, and the pills work but only till I am using the pills, if i don't take a pill a day I can't seem to go to the bathroom and my father had the same problems but he has passed away from cancer and i am extreamly worried please help me I need a professional advice, Thank You.