One of my 3 week old chicks has had consistently runny mustardy poo for the last few days. Yesterday she blew one out on my arm that was also watery. Today I cleaned out the brooder and added corid to the water. When I went home for lunch, everything looked wayyyyy better. Is it possible that it could have worked that fast? Did I jump the gun? Shall I continue with the corid for a few days to be safe?