My Butt Crack Sweats...and Gives Off Faul Oders...i Have Been

My butt crack sweats...and gives off faul oders...i have been overly wiping and cleaning...which i think cause a infection...it stinks after showers...and people around me smell it even when i dont...i also feel uncomfortable sitting down...and i aways thinking about it which feels like its getting worst....i need help what do i do?