Really irritated by own sweat - help?

[sniffle12]

I'm trying to exercise more but have a problem where after exercising, I get a rash/really itchy wherever I have sweated. So what should be a quick process - exercise, shower, go - becomes exercise, shower, scratch, come out in red blotches, have to apply rash cream, put my clothes on whilst sticky, still feel itchy...

Does this happen to anyone else and have you found anything that helps?

[PoniesandProsecco]

I have this! I just have to try not to itch it, shower it off and slather myself in sudocrem, very weird