The kanji 痘 primarily refers to "pustule," "pox," or "smallpox." It specifically denotes a type of skin eruption characterized by pus-filled blisters, often associated with infectious diseases. The character represents the visual impact of such a skin condition and is connected to illness and affliction.

・On-yomi (音読み): トウ (tō) ・Kun-yomi (訓読み): にきび (nikibi) - This reading means "acne," but it's not a direct reading of the kanji alone. It is a compound word.

⚫︎天然痘 Translation: Smallpox ⚫︎痘痕 Translation: Pockmark (scar left by smallpox or other pox) ⚫︎麻疹と水痘 Translation: Measles and chickenpox

The kanji 痘 is a phono-semantic compound (形声文字, keisei moji). The radical (部首, bushu) is "疒" (やまいだれ, yamaidare), which signifies "sickness" or "disease." The phonetic component is "豆" (とう, tō), which means "bean." This "豆" element originally indicated something small and round. The combination thus depicts a small, round, disease-related formation on the skin, visually linking the disease with the appearance of pustules. The inclusion of the "疒" radical solidifies the kanji's association with skin diseases.