Saturday, April 4, 2009
Cross reactions in resourcinols
Yay, going to Hawaii where there is NO urushiol, the alkyloid in Poison Oak that causes a bad dermatitis. "Hey Daddy can we buy mangos?" No...I'll pick some wild ones for free.
Find mango tree. Pick mango. Mango sap drips on various exposed skin sites. Skin inflammation occurs, just like poison oak.
Mangos and poison oak/ivy/sumac are all sumacs. The alkylloid mangol is very similar to the alkylloid urushiol, and cross sensitivities are the rule, not the exception. Basically, if you have been sensitized to poison oak, avoid mango sap and skin of the fruit. Nuts. (Eating the fruit is fine and will not cause a reaction)
Oh well. The discomfort is minor compared to the excitement of learning something new.