ALWAYS!
I have low grade fevers off and on often. If I'm having a crappy day or didn't sleep well or something, I have a 99.X temp. Ibuprofen or tylenol helps and then the next day or so, I'll feel better. I think it has to do with the type of bacteria I culture. I have two types of MAC in my lungs, both discovered when I was in the hospital with crazy high fevers. I'm on antibiotics to get rid of the MAC but it takes so long to get rid of, I wouldn't be surprised to find that my low grade fevers are a result of the MAC trying to fight back. I also have MRSA, I wouldn't be surprised to find that that's the cause of my periodically low grade fevers either. Hope you feel better. Tylenol and a nap helps me, as does an extra vest session/aerosol treatment.