Recurrent ear and sinus problems is indicative of candida/
yeast overgrowth. Antibiotics are prescribed, which create an opportunity for the yeast to grow/thrive and upset the normal gut flora. The candida/yeast overgrowth compromise the immune system, can create allergies (leaky gut), and a host of other problems (ear, sinus, throat, moods, gastro...), which unfortunately are mostly treated with of course more antibiotics. The cycle repeats.