I use 2 different types of creams in the warmer weather, the first is the medicated A&D ointment for at night and Aquaphor healing ointment for day / morning time diapers, the real important thing though with summer time is to air out your skin, I typically once the warmer weather moves in, cut my diaper time down so I'm in underwear during the day time, this gives my diaper region time to air out and prevents rashes / irritation.