I’ve had rashes under my boobs for ages. They didn’t really hurt or anything but I used talc and medicated powder to try and get rid because I’m sure it’s just a sweat rash. It’s become more itchy and sore in the last few days. Any idea what I should do? I feel like keeping them dry would be best but I want to use cream now instead of talc to treat the soreness and itch but I don’t know what’s best. Thanks