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self-medication

American  
[self-med-i-key-shuhn] / ˈsɛlfˌmɛd ɪˈkeɪ ʃən /

noun

  1. the use of medicine without medical supervision to treat one's own ailment.

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.