My 3 year old DS1 has been completely dry and clean during the day for sometime, although he still needs a nappy at night. However, in the past few days he's developed a bad attack of diarrhea, and if it continues I'll take him to the doctor. In the meantime, he can't control himself poor thing, and messes his pants every five minutes, which upsets him. So rather than have to clean up everywhere, I've put him back into nappies. He seems happier with this, but my concern is this might encourage him to regress. Are there any other options?