Spider Mites!!!! Help

ITS MY FIRST GROW AND I GOT A SMALL CASE OF SPIDERMITES{FOR NOW}
WHAT CAN I DO TO GET RID OF THEM FOR GOOD???? and were can i neem oil could i get it at a kmart or some shit like that?

Also, can you use Neem oil or einstien or any other of the "safer" products on the plants while the lights are on opr will that send them into shock like common sense would tell me? If it shocks the plants, does it have to be performed while the plants are in the dark stage? How long will it take them to dry, etc. I have every stage of growth and some of the heratier plants I could sp[onge if needed, but some of my hatchlings I would be concerned to spray too much?

Azatrol is #1 it is the 5% active ingredient in neem oil consintraited it a very strong liquid, mix 30ml per gallon. Its is the best. Omri listed and you could spray it on tomatoes the day before and eat them the next day. try it. Go to a hydro shop. ask for it, its expensive and could be a little hard to find. #1 though.