Glad you asked...
To remove tree sap from your hair, you will need peanut butter. Rub the peanut butter into the area and then use a blow drier on it until it is soft. Next just brush it out and wash the hair.
Then again, this answer might help you...
Tree sap in your hair isn't fun at all! The sooner you get it out the easier it will be to remove it. Try some all natural peanut butter or the oiliest peanut butter you can find. After putting the peanut butter in the area of the sap use a blow dryer to soften it up. Then use a comb to comb it out. You will definitely need to wash your hair with shampoo afterwards.

