Down the side of the audiogram, there is a measure of loudness. At the top of the graph are the very. quiet sounds, going down to moderate, and then very loud sounds. The points (red circles and blue. crosses) marked on the graph represent the quietest sound which can be just heard.
Steps. 1  1. Wait at least 3 days to wash newly permed hair, or your perm would not last as long. 2  2. Use hair care products that are safe for permed hair 3  . 3. Wash your hair gently (don't scrub too hard or your hair will tangle up)(your hair is very porous and fragile). 4  4. Gently rinse your hair.
Quick Answer. Care for a new perm should involve avoiding shampoo for the first 24 hours and, after that, using only products especially formulated for chemically treated hair. Taking care of a perm appropriately ensures that it lasts the maximum amount of time with the minimum amount of damage to the hair. Continue Reading.