The lump you described might be impetigo
It is a bacterial skin infection
caused by staphylococci.
There may be reddish elevated lesion on the skin with pain and fever.
Blood tests may be done to rule out DM,HIV and immunocompromised condition.
Now, in your case it is healing and there is scab on the lesion.
Strong antibiotics with anti inflammatory drugs may improve the condition.
Immunoboosters may be taken
Improve general health with healthy food.
Improve hygiene with dettol
You may be improved.
I hope you got my answer.
Dr. Ilyas Patel MD