I have been on Nexplanon for 3 months i and after the first month I started itching really bad and getting spots all over my body and I have not stopped itching. I have not changed any of my foods, laundry soap, body wash, or started any new meds. The itching is worse in the early morning when I wake up and in the evening before I go to bed. It s worse on my chest, neck, stomach, both arms, and upper legs, but I have gotten spots on most parts of my body. I don t know what else this could be from.