We don't have synonyms for cotton swab yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are cotton wax.
(n) :
{{l|en|A small wad of cotton wrapped around the end of a small rod, made of wood, rolled paper, or plastic, most commonly used in aural hygiene and cosmetics application.
(n) :
{{l|en|A small wad of cotton wrapped around the end of a small rod, made of wood, rolled paper, or plastic, most commonly used in aural hygiene and cosmetics application.