Operation and tamoxifen opinion needed!!

HI everyone 

I had a mastectomy and reconstruction, however have had some tissue necrosis. Mu surgeon has tried to fix it with honey, iodine excision etc but tomorrow I have to go in for a 30 minute op to trim some skin and re suture. I have been told I need a general anaesthetic but I have been taking tamoxifen for 2 weeks. 

My surgeon says it's fine as I haven't been on tamoxifen long and it's a short op. I am worried about potential DVT. Any advice? Has anyone had an operation and stayed on tamoxifen. Freaking out a little......... appreciate any replies before tomorrow xx