Crossword clue: a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions

The most common answer is weal (4 letters).

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

weal 4 letters wn-def

a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions

wheal 5 letters wn-def

a raised mark on the skin (as produced by the blow of a whip); characteristic of many allergic reactions