Skin induration or Antibioma

[rashminm]

My 6 yr old son  had an abscess on his right forearm between the elbow and wrist in middle which was 13mmx7mm . After 4 weeks , one day it suddenly started leaking i mean the pus from the abscess and we got it drained and cleaned . He was given 4 more days of antibiotics on the day of drainage , moxclav and fusidin cream to apply in the area for 10 days and to keep the area clean. The place of the abscess is flat now and little redness around the whole from where it was drained . When i asked my child he said it is not paining . Now we have stopped the ointment and just washing it with water soap to clean. Originally the abscess was 13mmx7mm as i told you and now when we touch the area of the wound thick skin is feeled of smaller size but shape is rectangle type as the original abcess. I searched online for it and was confused to see about induration and antibioma but how do we know what it is . The doctor who drained it is in a different city and it is not possible to visit him again but when contacted through phone he said that it is skin induration which will take 4 weeks to go . It is already 12 days since the drainage but hardness is still there though we do not know if it has regressed in size but when touched we can feel the hard skin as a rectangle piece below the skin. Someone said the skin induration will go in 4 weeks and someone who said it is antibioma it will take 6-8 weeks for the hardening to go off completely and no treatment is required. Will the hardness below the skin where the abscess was drained go off completely on its own?