The best replacement for exudate is transudate.

The best alternatives to exudate are rated as following:
★★★★★  transudate
★★★  transudate pleural effusion
★★★  drusen
★★  drainage
★★  transudate effusion
★★  pus
★★  transudate ascites
★  transudate criteria
★  edema
★  transudate edema
★  transudate light's criteria
★  erythema
★  purulent
  transudative ascites
  slough
  transudate definition
  transudate fluid
  transudate pleural

Your alternative for exudate is not listed? Suggest!
Speaking about exudate, one probably shouldn't forget about viral pharyngitis.

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



Google Trends

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exudate
transudate
transudate pleural effusion