I smashed my finger during end of January. My thumb got swollen and blood was trapped under the nail. In mid of February when I hand washed a few clothes the dried blood trapped under the nail sort of expand and reached the tip of finger. I squeeze it off not all about half. End of February I bathed my dog I've notice the blood under the nail almost 90% gone. What worry me is that there is funny smell from the finger. And the nail does not seem to fall off though it look abit separated from the nail bed. How to know if there is infection. Thanks.