A dream of styling or curling your hair with products, is a forecast of improvement in your love relationship or, for single girls, a new romance.
To dream of slicking your hair down or back with hair products, predicts that you will have an increase in your social status. Dreaming that a hairdresser uses products on your hair, means you must not repeat gossip or it will return to work against you threefold. Also see “Hair Dye.”... My Dream Interpretation
To see a spray can in your dream suggests that there is something in your past that you need to hold on to and preserve.
The dream may be a reminder that you “can” do something. Don’t underestimate your abilities and talents.
If you dreamed of spraying the can, you will soon get some good news or learn some secret knowledge. However, if the can in your dream was empty, discarded, or you threw it away, you may have serious money troubles ahead - start saving!... My Dream Interpretation
A staple in the graffiti art world, spray paint allows the immediate and portable use of the paint that is inside the can. As a form of expression, spray paint may highlight a desire to be more creative in a rebellious fashion.... Complete Dictionary of Dreams