Cat scratch disease is caused by a bacterium known as Bartonella Henselea following a scratch. It usually presents as swelling of the lymph node in the neck known as lymphadenopathy, bruising of the skin, redness, fever .The infection usually lasts up to 1-3 weeks and the lymph node takes longer to resolve about 3-4 months. Since you have used the antibiotics for 10 days it should be sufficient. There is no reason to be worried.