That’s normal, mine were sore and itchy and I was afraid they were infected, but the nurse reassured me. As long as the dressing is clean, no discharge/bleeding/funny smell, they should be fine. I noticed the pain/itch worse after the 1st week and it settled down by 2 weeks. I was told it was the healing process.
Also the support bra needs to be kept on to help with drop and fluff so the implants settle in the right place, a few hours is a bit long to have it off. I read somewhere that it’s max 30 mins for a shower, but it’s best keep it on for 6 weeks