In the worst case, breathing difficulties increase dramatically and develop into pneumonia. If you have pre-existing lung or respiratory conditions such as asthma, Christmas tree syndrome can affect you more severely. This is how rhinitis or asthma symptoms manifest themselves. But a Christmas tree can also trigger serious problems ranging from respiratory complaints to an asthma attack with shortness of breath. This manifests itself in hay fever-like reactions such as a cold or cough. Sensitive people, however, react allergically to the coniferous tree. For many families, the climax of Christmas anticipation culminates in setting up a real fir tree in the living room and decorating it festively with baubles, garlands and candles.
