Credit: CC0 Public Domain If it tastes this bad, it must be good for you? Homemade, tear-inducingly strong onion “cures” for flu are the latest medical misinformation spreading on TikTok—a sign, analysts say, that affordable, evidence-based health care is beyond the reach of many Americans. Videos extolling the pungent concoction—made by soaking chopped raw onions in water—as a miracle...