Do the links in my post show pictures or can I email them to you? I think the root started when I got selson blue on my skin a few times.
Topical creams don't get to the root problem. Your over heated?
Yeah, the sun and heat from your body may have caused a skin irritation in those areas. Look into icing and or cooling your wholebody.
Heat rash? Possibley. I'd have to see a picture.