Is there any quick remedy to alleviate pain resulting from physical or emotional distress?

At a talk, a person inquired about a quick remedy to alleviate pain resulting from physical or emotional distress. Is it feasible to have a first-aid kit for such situations? I am skeptical. Nonetheless, I have encountered similar challenging circumstances on many occasions and devised some methods that could serve as a starting point.
 
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What to do to release physical pain? (Coming Soon)