The creatures are Collembola mites or their likes. I finally got rid of them in the enviroment using ozone shock treatment. Fogging with Cedarcide's Best Yet is expensive and isn't as effective as ozone. Ozone also disinfects your belongings, which Best Yet can't do.
I bought my ozone generator from BioBlaster (www.ozonegenerator20000.com). Mine generates 14,000gr/hr and it comes with a hose (for cars or closets). I would suggest you to buy the 28,000gr/hr one, which comes with a powerful blower motor. Start ozone treatment immediately. Once the mites get into your skin, ... (horror!).