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Originally Posted by ~Kris~ I am very allergic to cats and I went to visit some relatives who have cats. I had the normal sneezing, congestion, coughing, and eyes swelling (all of that fun stuff). However, I'm now coughing up green instead of clear. Can allergies cause a sinus infection? |
If allergic reactions cause the nasal or sinus membranes to get damaged, causing open wounds, then germs can get into those open nasal wounds and cause an infection.
Once the nasal membranes get damaged, the unfortunate sinus sufferer enters into a vicious cycle of repeat infections, until those nasal or sinus membranes are allowed to completely heal.
It's the same way with your hand. If you get a wound on your hand, or other part of your body, you can then more easily get an infection. Until that wound, or injury, heals completely, it is always a target, of germs, for infection or re-infection.