i’ve had this rash on my leg for about 4 months, i’ve done a lot of research and can’t quite find what it is, pls get back to me as soon as possible about what it is, and if there is any treatment, thankyou

ive had this rash on my leg for about 4 months ive done a lot of research and cant quite find what it is pls get back to me as soon as possible about what it is class=