Going on my own recent experience, I take DE in the morning and evening. I mix 1 TBSP with a cup of filtered water and drink it down. I also have been taking a clove, Wormwood , Black-Walnut tincture at the same time. I definitely expelled a Tapeworm in bits, a 1.5 inch segment of it was on my TP...ew. I would just start slow with the DE. Start by taking just a teaspoon in the morning and see how you feel. You can slowly up your amount. I wouldn't go in full force right from the jump, just take it slow to see how your body reacts and go from there. Good luck!
DE is some amazing stuff. My kitty has struggled with allergies and respiratory issues since she was a few weeks old. She would walk around and you could hear her sniffling trying to smell things. I started giving her a 1/2 tsp of DE mixed in with her moist food in the evenings and her sniffles are gone!