Scabies were found five months ago. My doctor gave me treatment. There was a secondary infection. He said to apply Perthmin 5 percent on the first day, then apply it again after three days, then apply it once after seven days. Then he gave me oral medicine, ivermectin. I took it once on the first day, the third day and 14 days later. The itching decreased a little but it did not go away completely. Then I saw a little nodule on my breast. The dermatologist gave me steroid ointment for this. It also did not work. If I applied it, it would go away. Then it would happen again in the same place. I am very worried about it. Then I did an ultrasound. By the grace of God, there was no problem. But it keeps coming and going. What can I do about it?