I was diagnosed with overlapping connective tissue disease about a month ago now (SLE, Sjogrens & MCTD) and was prescribed hydroxychloroquine and prednisolone. I'm usually fine with medication, have never got any side effects from anything before and am not allergic to anything that I know of. However, a few days ago I started to develop a painful, lumpy rash in a very awkward place may I add! I'm wondering whether this could be a side effect to the tablets or just something completely separate. Would it have taken 4 weeks for the tablets to show any sign of side effects or would anything have come up sooner? I have read the leaflet that has come with the tablets and in there it says some pretty scary stuff about developing rashes but it also says it is a rare side effect. Has anybody had a similar issue? I have made an appointment with my GP tomorrow but just thought I would see if any of you lovely people have any ideas? Sorry for babbling...thanks!