my poor love has a bad diaper rash 😞 at least that's what i think it is.. it almost looks like…

my poor love has a bad diaper rash 😞 at least that's what i think it is.. it almost looks like pimples with pus in it on one leg & the other side like blisters. i got dr. smiths diaper rash cream & ive been changing his diaper every hour sometimes more in an hour. any advice to help my lil one feel better? i kinda want to take him to the dr but my bf said they wont do anything cus its just diaper rash..