Hello! I had SRT treatment on my forehead. What I didn’t realize until post treatment was that the dermatologist did not use image guided technology, also known as IG SRT. It is my understanding that you cannot have the area treated with radiation again if it does not work. Anyway, the basal cell came back shortly after the end of my SRT treatment (15 visits). I then went to a dermatologist in Manhattan who used a YAG laser to treat the area. I went for 7 different treatments and it finally worked. Good luck with your treatment.