It seems that you may prurigo nodularis
The disease may be related with mental stress.
There may be itchy papulonoduar lesions.
The skin on lesions may be thickened and after healing there may be scars.
Take antihistaminic like levocetirizine
till itching is relieved.
in tappering dose.
If there is infection, take antibiotics for short period.
You may be improved. However , you consult dermatologist
I hope you got my answer.
Dr. Ilyas Patel MD