self-soothing

adjective

1. that soothes: a soothing voice.
2. tending to assuage pain: a soothing cough syrup.

adjective

1. having a calming, assuaging, or relieving effect

adj.1590s, “flattering,” from present participle of soothe. Sense of “mollifying” is from 1746. Related: Soothingly.