It's very possible the infection is being spread and spread again by your child to the rest of the family. This is mostly found in kids, and when adults get it it's usually from their kids. Once you've got them in your house, you've got to wash everything that touches the butt, and in hot water. Take hot showers in the morning. As for the med, sometimes meds do damage the very immune systems that fight against repeat infections. Antibiotics, and anything that kills is an antibiotic, if strong enough will also kill off beneficial organisms, but this critter is still getting in because it's in your house. I'm guessing family members are now passing it along to one another, which is why the docs want to treat the whole family. Treating it depends on where they are -- if they've gotten inside the body, that requires internal medicines, but they can also live on the edge of the anus without being inside your colon. Just depends. Wormwood is found in almost all natural formulas for dealing with worms. Is it more toxic than the med you're already using? Don't know. There's not a ton of it in a capsule, but treating these things naturally takes more applications and takes longer. But if you look at worm treatments, they usually contain several herbs, so you can buy them singly. Black walnut is one that is almost always combined with wormwood in formulas. The best, however, in this case, might be raw garlic. If you want a great but very expensive garlic supplement because you don't want to mince and eat a bunch of raw garlic until it works, New Chapter makes a great garlic oil cap. It will reek of garlic, but that's what you want. Oregano oil might help as well, but it might burn in the breast milk. It's a hot herb. Eclectic Institute makes a great garlic oil for topical application. I have had recurring fungal infections in both my feet and in the groin area, and if it gets really bad I've found I've had to use the medication because the itch drives me nuts at that point, but although it works the problem comes back almost inevitably, so after I get rid of it at the very first hint of an itch I start applying the garlic oil topically and taking the garlic oil caps and oregano oil internally. Haven't had to use medication since. You're worms are a bit different than mine were, but it's a similar problem, and the advice will be the same -- clean, clean, clean, throw out if you need to and can afford to start over, and in this case, focus on the child, as this might be the problem. As for your diet, do know that a vegan diet can be a fungus magnet. I know, I know, everyone's told you vegan is healthy, but no, it's really not unless you work at it really hard. It's very carb intensive, and carbs when not burned will turn into a certain amount of sugar even if you're not consuming any. The way to get sugar out of your life is to eat animal food, unfortunately, because it's mostly fat and protein, but that doesn't mean you have to do that, not by any means, just know that simply being vegan is irrelevant to health -- might be better for the heart, might be worse for the pancreas and for getting fungal infections. Life is complicated. Make sure you're getting enough protein. Notice that your child isn't vegan -- drinking milk, right? It's more a political thing than a proven health thing. A buffalo has less fat than a soy bean. So eat the same balanced diet as a vegan as you would if you weren't and that will be fine. Make sure you get B12 and methionine from somewhere, it's not in a vegan diet unless you're doing a lot of fresh water algae. Too many vegans think that's enough to make them healthy -- it isn't, you still have to eat well. If you had no sugar, you'd have no energy to burn for immediate needs. And those worms do love sugar. Peace.