Go to the nearest ER. The doctor should look at the wound, treat it, then run tests to check for parasites. He/she should also start your bf on antibiotics. As troy stated, this is a diabetic forum. I replied because years ago I got a parasite infection from a nick while in CR.
Unless your bf wound is infected it should have healed by now. I suggest you consult another doctor ASAP. This site is for people with or questions abour Diabetes.
Good Luck,
troytroy