I was precribed this medication for sinus infection on 1-23-2007.It helped my sinuss but after taking it for 5 days, I got to sweeting real bad, had the chills,and was very tired. Yesterday I woke up to a rash all over my body. My left arm and back looked like a sunburn. I went to my regular doctor and he said a was allergic to this medicine, I would feel miserable for about a week. I am miserable..