I am currently challenging a food allergy (milk protein) by eliminating milk proteins in my diet. Symptoms such as fatigue, tendonitis, migraine, eczema are disappearing. I do have another symptom that I am puzzled about and it is clearing also. The parotid duct inside my left cheek is "blocked" (swollen, with a white head) and I have tenderness in the parotid gland and popping in my ear with loud, sudden noises. Is this "normal"? I have been using ice compresses to reduce swelling, and trying lemons. Any other suggestions?