Hi,Dear,thanks for the query to Health Care Magic.
After meticulously studying your facts and your concerns
In the background of your young age/quarter size/and recent growth with white head,it appears to be
acne.But as its painless and has grown in last 2 days,it appears to be sebaceous
cyst of the closed acne,with a white head.
Hope this would satisfy you for lump cause reply.
Such uncertain lump hence would need consultation from ER Surgeon who would clinically confirm above 2 possibilities and would treat it by drugs first and if not resolved would excise it surgically.
Hope this would give you confidence to plan treatment with your doctor on your next visit ,which you should plan definitely.
Feel free to ask any further query in this regard to HCM and to ME.
Write excellent review if you feel satisfied with this reply,which would help my rating for the benefit of the other patients.
Wishing early and fast recovery for your lump.
Dr.Savaskar M.N.
Senior Surgical Consultant
M.S.Genl-CVTS.