The best replacement for scab is mole.

The best alternatives to scab are rated as following:
★★★★★  mole
★★★  tick
★★★  melanoma
★★★  tick on dog
★★★  no scab
★★  bandage
★★  skin cancer
★★  scar
★★  booger
★★  cold sore
★  necrosis
★  crust
★  eschar
  bandaid
  escar
  pus
  necrotic tissue
  band aid

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

Other search terms related to scab and their ratings are:
★★★★★ scarring
You have in mind a companion for scab and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of scab in all years. Click on graph for more.
scab
mole
tick