The best replacement for erythema is induration.

The best alternatives to erythema are rated as following:
★★★★★  induration
★★★★  edema
★★★  fluctuance
★★★  exudate
★★  calor
★★  ecchymosis
★★  redness
★★  hyperpigmentation
★  urticaria
★  rubor
  exanthem
  hyperemia
  exudates

Your alternative for erythema is not listed? Suggest!
Speaking about erythema, one probably shouldn't forget about pruritus.

Other search terms related to erythema and their ratings are:
★★★★★ pruritus
★★★★ papules
★★★ pustules
★★ bullae
You have in mind a companion for erythema and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of erythema in all years. Click on graph for more.
erythema
induration
edema