Question for those with bigger thighs...

I always wear capris in the summer. No dresses and no shorts (even though it’s incredibly hot). The reason why is because my thighs rub together and it makes a rash which is somewhat painful. I’d really like to wear dresses or shorts. I can’t wear biking type shorts under a dress because they ride up and then I’ve got the rash And a roll of cloth bunched up under my dress. I tried wearing shorts today using deodorant between my thighs but still got the rash. I’ve tried this stick called “glide”, supposedly made for this type of thing but that also didn’t work.

PLEASE tell me how to prevent this chub rub!!!