have you tried using drapolene or any diaper cream? when he does no. 2 i will always wash and pat dry, air it out abit, thn use the cream. if no.1 i just change use wet wipes no cream. (i just use the cream after washing his areas, bathing of poop e.g) also must change diaper often to avoid rash. bathing wise i bath him twice a day. pat dry. powder/lotion. any balm or oil. if that answers your question.
If bowel movement can use cotton balls or pads instead of wet tissue. Then pat dry. Best is bring to basin and wash. Make sure it’s dry and apply a thick layer of diaper cream
We used cotton pads dipped in pre-boiled water. We apply Desitin cream after every change too.