There is no treatment for the infant because the diagnosis can be made only after death. Support groups or counseling may be advised for the parents.
There is no treatment for SIDS and therefore no side effects.
Parents of an infant who dies of SIDS often go through shock, grief, and guilt. They often feel that there is something they may have done to cause it or could have done to prevent it. Compassion from friends and family, as well as professionals, can help the parents to cope. Support and empathy are needed. Accusations should be avoided. While a small percentage of unexplained infant deaths are due to child abuse, these probably account for less than 5% of cases.
Any depression or suicidal thoughts in a parent should be reported to the doctor.