My son goes through periods of time like this - several poos every day. His poor little bottom gets so sore during those times!
I keep some harder wearing nappies around for these times - plain cotton, no fleece etc. - then I can put whatever cream on him I need or want. I DON'T USE disposable liners during these times!!! They stick to his little bottom and tear the skin. Just fleece, or no liner at all, just the cotton nappy.
Nature Babies and Motherease Wraps will contain AMAZING explosions. Everything fails once in a while, of course, but far and away, better than any other product at containing poo, diarrhea (sp?), whatever!