Thank you for your query on Healthcare Magic,
Adult laxative dose may lead to diarrhea
The mainstay of therapy is to maintain hydration by giving oral rehydration solution like Pedialtye 75 to 100 ml after each loose stool
and in between.
Due to repeated loose stools and wiping that area leads to rash
You can apply zinc oxide
cream to work as a skin barrier.
And during wiping that area, don't rub but gently touch with a soft, clean cloth and allow to dry.
Hope I have answered your query.