Kali Sulphuricum is a rattle in the chest. A very noisy asthma, especially in children at night and in kids where you walk into the room and you hear them wheezing. You hear the rattling in the chest while they are asleep. It doesn’t bother them enough to wake them up is the idea. You hear it. It is very audible wheezing when you walk into the room. The other keynote is aversion to eggs. If there is audible wheezing when you walk unto the room and it’s an adult, it’s Bichromicum, Kali Bichromicum