Is it normal i get pimples on the bottom half of my saggy breasts?

Do you mean under your breasts? I've always had big ones but never had this problem until about a year ago when I bought 4 new identical bras: 1 black, 1 white, 1 red & 1 purple. The black and white ones are ok but I got a huge rash under my tits from the other 2 and I've never been able to get rid of it to this day.

It drives me nuts - itches and hurts & sometimes keeps me awake at night. I've tried paw paw ointment and calendular cream, both of which are good for any skin condition and for a month or so on a practice nurse's suggestion have just been using medicated talc after using the hair dryer on cool to make sure I'm totally dry.

So far I don't think that's working either, so if OP finds a remedy that works for her, I want to know about it

People will get pimples wherever there are folds and sweat on the human body.

Yes, it's normal for people who are prone to clogged pores. You can also get them in the folds of your arms and legs, and the upper part of your bum crack. Washing too much doesn't always help, since your body replaces washed away oils almost immediately. You might need medication or special exfoliating creams for it. Take a trip to the doctor.

Wash them better. If you're already doing that, see a doctor.