Thanks for writing in,
Since you are able to carry out all your day-to-day activities since past 1wk, no skin puncture, yourself and the dog has been vaccinated & a painless lump indicates that it might be hematoma
following the bite.
The hematoma will resolve spontaneously. Hot water fomentation might help to decrease the lump & resolve the hematoma faster.
You might need to see your doctor if you develop fever
or lump becomes tender to touch or development of swelling in foot or difficulty in walking or tender lymph
nodes in your thigh or any other signs / symptoms which you feel is unusual.