I have chronic sinusitus. I have been running fever of 99.5-100.8 for over two months now. My cat scan and ent say that they don't find any acute sinusits just chronic sinusitus and he thinks the fever is from something else. I had this problem several years ago and it landed me at an infectious disease doctor who found I had microplasma and treated me with Levaquin. My recent visit with an infectious disease doctor showed that my IgM is elevated. It is my understanding that it shows I have an acute infection but they have not found the origin yet. I have been tested for HIV, all hepatitus, lupus, RA, blood cultures, etc. with all negative results. I had allergy testing. The day after the testing I had three swollen bumps which the nurse advised me were all from mold. I have long suspected I was allergic to mold since my fever is always worse when the humidity is high. However the allergist informed me that since I did not have an immediate reaction I cannot be treated with allergy shots. He said that I am only irritated by mold not allergic. So he is done with me. My ENT told me this is incorrect. He said there are several different types of allergic reactions and yes I am allergic to mold. I just don't have the type of reaction that shots can treat. My ENT also told me that this long recurring fever in his opinion is not from my sinuses. I'm so confused. So my next step is back to the infectious disease doctor next week. Has anyone have a similiar problem?