You just need to eat healthily, as we all should anyway, to keep up your strength as parasite cleansing is stessful to the body. It is especially stressful to the adrenals which is why it is good to get plenty of healthy protein and vitamin C, especially from citrus fruits, preferably several time a day.
Milk thistle, l'ornithine, B50 are also helpful - ornithine at night before bed. Get all the rest you feel you want, veg out if you like and drink a lot of water.