I was taking bactrin for a bladder infection, I did not know that I was alergic to the meds.  I ended up with a high fever, then bluish spots started to appear on my body. When the fever went away, the blue marks started to fade.  Where the blue marks were, I ended up losing the pigments in the skin.  Was this the cause of the medicine or the high fever?
HI, thanks for using Chat Doctor Normally most allergic reactions would be associated with itching though this can vary from one person to the next. Based on this, it is possible that the rash is related to the fever and infection itself. The rash and altered pigmentation should improve. I hope this helps