Welcome to the forum. It seems the injury
caused blood to clot within the tissue of the delicate area around your eyes. It is nice to know that you are fine with only a small knot left.
You can apply the oitment, "thrombopbob" locally on the area where the swelling and discomfort still exist. Be cautious and do not let the oitment get inside your eyes. In 2-3 days the spot should get cleared.
Hope you have not hurt your eyes, if you have any vision problem just check it out with a doc. You may need to see a dermatologist
if the spot does not clear out. Take care.