Harvey karp's 5 s's are among the best.
1.Swinging-babies love movement and ofteen this calms them down
2.Swaddling-some babies are soothed by wrapping (and some are not)
3.Shooshing-singing, humming, talking
4.Sucking-some need to suck something
5.Side or stomach position while holding.
One of these methods usually will soothe the baby. If not, there may be something more bothering baby.Call the md.