After putting the Tiny gPants on hold, we began using "regular" disposable diapers. We received a TON at our shower, and thought it would be sad to let them go to waste. However, as the days went on, Lucas developed a BAD diaper rash. I tried every lotion and potion under the sun, and yet it continued. I smeared everything from Desitin, to Bordeaux's, to A&D and Vaseline on his bum, but nothing seemed to help. His rash got so red, I was moments away from taking him to the doctor when my mom recommended Cornstarch Baby Powder.
I had some Johnson's brand Lavender and Chamomile Cornstarch Baby Powder on hand and began using it. I applied the powder from front to back, quite liberally, at every diaper change. It smelled nice, unlike regular baby powder, and made Lucas' skin around the rash soft. And while it seemed to help, it wasn't able to cure his rash completely.
Finally we came to a package of Huggies Pure and Natural Diapers in our stash. As soon as we started using them, we saw a significant decrease in redness. It was like we struck gold! As we continued using this particular brand, we came to the realization that Lucas merely had extra-sensitive skin, and was perhaps allergic to the stuff in "regular" disposable diapers, which wasn't present in the all-natural versions. So, we decided to stick with them for a while.
While these Huggies Pure and Natural disposable diapers are a bit more expensive, and required changing more often than other brands, they worked well at keeping his butt rash at bay. I no longer had to use butt pastes and potions, though I continued to use the powder on occasion, especially when the weather was hot.
On some occasions, I still use these diapers for Lucas, especially when we're traveling for Robotics for an extended period of time, and don't have access to a washer and dryer.