Hello Dr. Rynne, recently, I had scabies. I was put on the medication, Permethrin to get rid of them. After applying the cream, I had a horrible night because it felt like they were biting me all over. However, I saw my dermatologist today and he prescribed Ivermectin to make sure that none were still lingering about. What I would like to know is when I take all 7 pills at once, will that cause the effects that I endured when I usedthe Permethrin?