I had been reading on your site about others with tegaderm sensitive patients. My son has had a port for most of his life because of mitochondrial disease. He had tegaderm sensitivity and used opsite and sorbaview. I read where others were sharing that sometimes issues were had with it adhering. When we faced that problem, a friend (fellow mito mom) introduced us to hypafix. Because it is made of the same material as the edge of the sorbaview, it worked well when added after dressing was secure.