Hi,
You should reconsult with a doctor for a confirmed diagnosis and planning further management.
Sebaceous cysts generally do not require medical treatment. However, if they continue to grow, they may become unsightly, painful, infected.
'Blocked sebaceous glands, swollen hair follicles, excessive testosterone production, will cause such cysts.'
' Surgical excision of a sebaceous cyst is a simple procedure to completely remove the sac and its contents.
There are three general approaches used: traditional wide excision, minimal excision, and punch biopsy excision.'
You could read more about this at the following link -
http://en.wikipedia.org/wiki/Sebaceous_cyst
Let us know about how you are doing and if you need any other information.
Regards.