burn blister
Specifically a blister caused by a burn, not a friction blister.
A burn blister formed where I got burned.
火ぶくれはつぶさないほうがいい。
It's better not to pop a burn blister.
Most common spelling; uses kana for ぶくれ to avoid rare kanji.
Kanji spelling using 膨れ (swelling); less common but still seen.
Rare variant using 脹れ (swell); not commonly used.
Compound of 火 (hi, 'fire') and 膨れ (fukure, 'swelling'), with rendaku voicing to ぶくれ.