Breast support

I’ve recently had a mastectomy and now have a ‘softee’ to wear in my bra while my scars heal. Problem is, the nerve pain is such that I find the bra is worsening the nerve pain.  Has anyone else experienced this? The nurses have assured me that the pain is normal and so I’m not worrying about the pain. However, particularly with the hot weather at the moment, I want to be able to wear a t-shirt but need support for my remaining breast. I’ve seen some ‘stick on’ breast supports on Amazon which look as though they would do the trick but wondered if anyone else had any better experiences? 
Thank you

Jacqui