Hello mem, Good evening, First of all congratulations for your pregnancy... Now coming to your question about sebaceous cyst infected sebaceous cyst... Generally sebaceous cyst is quit common n if it is there n yreatment of choice is incision n drainage... Now you have infected sebaceous cyst then treatment of choice first control your infection n then incision n drainage... So don t worry mem you are on right path of treatment... If you have any problem then just raise question to your surgon he/she ll give you ans after examining that part n cyst perfactly as without examination I can not give any comment for surgery... Thank you, Regards, Dr.Ravi Kotecha