I am recovering from a pretty severe attack of sphincter of oddi dysfunction which began Thursday night. It is the first time this has happened to me since I had my gallbladder removed 34 years ago. I am 63, female, 5'5",about 30 lbs overweight. I usually watch my fat intake, but I overdid it this past week and I am paying a painful price for it. My almost life-long allergies are acting up because of the humid weather in my locale. Can I take Claritin while I'm still recovering from an attack of SOD? My sinuses are really bothering me. I feel as if my body will be back to normal within another 24-48 hrs. re the SOD. I am living on a clear liquid, low-fat diet right now. I don't want to upset my progress.