also: あせぼ
noun
prickly heat; heat rash; miliaria
Common skin condition in hot, humid weather, especially in babies and young children. The medical term is miliaria.
赤ちゃんの首のまわりにあせもができた。
The baby got prickly heat around the neck.
夏はあせもがかゆくてつらい。
In summer, prickly heat is itchy and bothersome.
Medical kanji spelling; also read あせぼ.
Alternate reading of the medical kanji spelling.
Rare kanji variant; 疣 means wart, but here it is used for the rash.
湿疹 is a broader term for eczema or dermatitis, while あせも specifically refers to heat rash caused by blocked sweat ducts.
Compound of 汗 (あせ, sweat) and も, a suffix of uncertain origin that may be related to 物 (もの, thing) or a sound-symbolic element. The alternate reading あせぼ is a voiced variant.