all kinds of illnesses; every disease
Refers to a wide range of illnesses collectively. Often used in contexts like traditional medicine or proverbs.
This herbal medicine is said to be effective for all kinds of illnesses.
cure-all; panacea
Compound of 万 (ten thousand, myriad) and 病 (illness). The exact historical derivation is uncertain, but the kanji combination directly conveys the meaning of 'myriad illnesses'.