Hi, so I cut off the whole tip off my finger including half of my nail just missed the bone. I went to the ER and they patched it up and told me he has to keep checking on it but I had to make an appointment. I did, but the doctor is now on vacation and can't see me untill two weeks. It's already been two weeks since I saw him and now another two weeks and the dressings are filty! What can I buy from the store to change it myself? (What he did is real simple, just cleaned it with stearlized water, put some kind of liquid on it, put a pice of metal protection, wraped it in gauze which is held by tape...) Please help**