Girls, hello! Is it an allergy to diapers?

Girls, hello! Is it an allergy to diapers? We're using Pampers Active Baby, we never had such a problem before, for a week now, like this, the diaper turns red, I smear Sudocrem but it doesn't help, give my baby a break in the afternoon for 10 minutes, now we need to change the diaper? If yes, then recommend something cheaper so that it would be ? I will leave the photo in the comments.