What is the difference between pine tree allergy and "Christmas tree allergy"?

There is a difference between pine tree allergy (pollen allergy in the early spring) and Christmas tree allergy (allergy to mold, in the winter). Dr. Allen Meadows explains it in this video for the ACAAI:



Dr. Meadows was an early pioneer in the use of YouTube to spread healtcare-related messages that benefit his patients and the general public. See more videos on his website for Alabama Allergy and Asthma Clinic PC.

Related reading:

‘Botanical sexism’ blamed for making life miserable for allergy sufferers as male trees fill city skies with pollen http://goo.gl/cx5tH

Comments from Twitter:

@SurlyAmy: $45? RT @DrVes: What is the difference between pine tree allergy and "Christmas tree allergy"? goo.gl/Hy7mx

@AxxessMedica: Wow! Who knew? Interesting!