Will this hard internal lump on my forehead disappear after lipoma removal surgery?

I had my 1 inch or less lipoma "excised" 1 month ago from my forehead. It literally took my surgeon 5 minutes at the most, for the surgery. including injecting anesthesia, waiting for the area to numb, stitching and the surgery itself. Now I have a hard bump on my forhead triple the size where the lipoma was. The scar on the top layer of my skin is almost gone already. I was told massage the hard lump, it softens just a tiny bit after hours of massage but It collects harder than before after 30 mins