Hi welcome to H.C.M.Forum. you have itching and it is bleeding, it is O.K. but you are diabetic, so you should be very conscious about any injury
or oozing of blood and immediately present before a local doctor.diabetis must be under controle during and even after treatment of this oozing. every month you should get your urine tested for sugar , and if present get your blood tested and necessory action taken. best of luck.