just open them in my opinion
you can do nothing(only take lego outside and let sit for some time or purchase them again)if they really are releasing fumes and you want to play
I usually take a picture of mocs on my floor ,but sometimes I use pure colour(white or red,but the color of the background is not similar to the mocs) as the background then I can replace the background by photoshop software。
I am just starting LEGO bricks,only perchased one set(4635 fun with vehicles)for my son,we have not female minifigs,but i do not think my son will like the girls getting lipstick or eyelashes.^v^
my English is not good,if something i spelled is wrong,i am so sorry
Have a nice day!!!!!!!