Apply liberally to each electrode site. After soaking each site the first electrode will be loosening up. The oily feeling is a moisturizing oil which we included in our product to help dissolve collodion and protects the skin and hair from drying out. After you remove all the electrodes comb out as much of the residue as possible. We recommend that you leave as much of the Collodion Remover in the hair until the patient washes his/her hair. The benefit of this is that the Collodion Remover will continue to work on the residue and once washed out with shampoo you will find virtually no residue left.