Thanks for the query
If you have recurrent problem over the scalp
and it has resulted in pre cancerous cells you would need to take a treatment at the Doctor office .
helps in removal of the lesions .
The Cryosurgery involves application of Cold
Liquid nitrogen which removes the pathology tissue out .
Please do book an appointment with the Dermatologist
who has a Cryosurgery equipment.
Thanks and Take care