Itchy breasts, especially around nipples after Breast lift without implants? Day 2 post op (photo)

I wanted to know whether it is normal to have itching sensation around the nipple area after a breast lift? My surgery was on the 3rd of nov, also when can i remove the waterproof plaster as it is really bloody and i am worried it can get infected due to that. I know you are supposed to keep the butterfly plasters on for a while, but have asked for the surgeon to confirm. Please advice whether the itching is normal and if there is anything that can help with the itching.