Pustule

pustule
    n 1: a small inflamed elevation of skin containing pus; a
         blister filled with pus
    

Pustule \Pus"tule\ (?; 135), n. [L. pustula, and pusula: cf. F.
   pustule.] (Med.)
   A vesicle or an elevation of the cuticle with an inflamed
   base, containing pus.
   [1913 Webster]

   {Malignant pustule}. See under {Malignant}.
      [1913 Webster]
    

121 Moby Thesaurus words for "pustule":
      abscess, aposteme, bed sore, birthmark, blackhead, blain, bleb,
      blemish, blister, boil, bubo, bulla, bump, bunion, canker,
      canker sore, carbuncle, chancre, chancroid, check, chilblain,
      cicatrix, cold sore, comedo, corn, crack, crater, craze, cyst,
      defacement, defect, deformation, deformity, dilatation, dilation,
      disfiguration, disfigurement, distension, distortion, edema,
      eschar, fault, felon, fester, festering, fever blister, fistula,
      flaw, freckle, furuncle, furunculus, gathering, gumboil,
      hemangioma, hemorrhoids, hickey, intumescence, keloid, kibe, kink,
      lentigo, lesion, lump, milium, mole, needle scar, nevus, papula,
      papule, paronychia, parulis, petechia, piles, pimple, pit, pock,
      pockmark, polyp, port-wine mark, port-wine stain, rift, rising,
      scab, scar, scratch, sebaceous cyst, soft chancre, sore, split,
      stigma, strawberry mark, sty, suppuration, swell, swelling,
      swollenness, track, tubercle, tumefaction, tumescence, tumidity,
      tumor, turgescence, turgescency, turgidity, twist, ulcer,
      ulceration, verruca, vesicle, wale, warp, wart, weal, welt, wen,
      wheal, whelk, whitehead, whitlow, wound