my immune system sucks bad, this is my second sinus infection or head cold in a month in a half. the dr. has given me zyrtec and all it did was make my nose bleed, then I tried clarinex , because she was trying to dry it up fast, which took about 10 days, then soon as I was feeling better my back goes out which was sciatic nerve it lasted about 2 weeks. now free of sickness and pain for 3 weeks now another head cold. trying not to sneeze to hard scared my back may go out again. (lol) this is the month I was diagnosed with lupus one year ago.