When you need to remove excess oil from your hair you can use a dry shampoo but first use a clean dry towel to run down the length of your hair.
Beginning at the roots of your hair, rub your hair lightly and then work you way down to the tips of your hair which will remove some of the excess oil from your hair.
Then wash you hair out using the dry shampoo.
You can also use eggs in your hair to remove excess oil or even Apple Cider Vinegar to wash the excess oil out of your hair.
You may not be able to get every bit of the excess oil out of your hair completely but you should be able to get most of the oil out by using either of the procedures I listed above.