Should I test for mold after ceiling discoloration?« Back to Previous Page

After the heavy rains we had last month, I noticed some discoloration on the ceiling of my son's bedroom. It started as a small spot but has spread to about half the area over the past few weeks. The smell is really musty and it makes me worried about mold. Could you recommend any steps or products I should use to test for mold and prevent it from spreading?