Very itchy

I don't know why but every night, at like 10pm, my legs will start breaking out in rashes, so there'll blotchy red spots all over.
Then the next morning it's gone, but by night, it'll come back.

Damn irritating, AND VERY ITCHY + PAINFUL. :(
And I thought my rashes gone already lor!! Wahlau DAD MY RASHES ARE BACK THE MEDICINES FROM THE DOCTORS A FEW YEARS AGO DIDN'T WORK I'VE RELAPSED HAHAHA OMG VERY ITCHY AND PAIN LAAAAAAAAAAAAAAAAAA :(