I seem to have developed a major problem only 3 days in to my dose of 25 mg. This started Saturday afternoon (I thought the welt was an insect bite), then Sunday evening two itchy welts (thinking again midges or something) and no other symptoms. This morning I woke up with an itchy welts on my arm that rapidly developed into a whole cluster of welts some that ran together. I also woke up with vertigo which is no fun at all. I reported this to my pulmonologist and made an appt to see my PCP to rule out a UTI. Meanwhile I was told to stop which I have. I hope my symptoms have another cause but to be safe am on hold.