Hi there , hoping to get some help/advice. I have had an itchy rash on my lower legs ankle to knee and a small area on arms now for about 5 days . I was wondering if it is autoimmune related , I haven’t changed my diet and only change to meds is reducing tramadol for slipped disc from 200mg to 100mg and had nerve root injection 2 weeks ago . It is very itchy particularly at night, i have put hydrocortisone cream on which helps a bit but still waken up . I haven’t been to gp as awkward to get there at moment.