Itchy Rashes on my body. About this

It's been a while since I have been dealing with this problem on my skin and now I've given up and am trying to fix this issue ASAP . I sweat a lot more as  compared with my friends. So when I sweat I feel itchy at different places on my body , the sensation which I feel always end up with a scratch and after that scratch the red rashes starts appearing and it  doubles up the  itchy sensation , not for the whole day but at some specific point or time  it starts giving Itchy feeling on that spot and if I scratch more it starts expanding . Till now I was dealing with this problem with a cream called FourDerm of cipla company which has always helped me to get rid of rashes and  itchy. But I don't think it's a solution for my problem because it has never stopped and I have to apply that Cream wherever it starts appearing, so if I won't apply that Cream it doesn't go away naturally. So plz help me to get rid of this disease and let me know if you want more info about this 🙏🏻