The best replacement for congestion is wheezing.

The best alternatives to congestion are rated as following:
★★★★★  wheezing
★★★  asthma
★★  edema
★★  pulmonary edema
★★  ear infection
★★  sinus
★★  runny nose
★  hyperemia
★  drainage
★  decongestion
★  sinus congestion
★  nasal congestion
  fluid buildup in lungs
  flow control
  lung congestion
  hyperaemia

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

Other search terms related to congestion and their ratings are:
★★★★★ fever
★★★★★ cough
★★★ runny nose
★★★ cold
★★ mono
★★ flu
★ sore throat
★ allergies
★ cold symptoms
★ ear pain
★ no cough
★ infection
★ drainage
★ ear infection
★ nasal congestion
pain
earache
coughing
wheezing
You have in mind a companion for congestion and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of congestion in all years. Click on graph for more.
congestion
wheezing
asthma