hi Lisa_E66, I found the auxiliary clearance the most painful part.You may find lifting your arm up can become abit difficult/sore so do your prescribed exercises.My drain came out after a week which was such a relief and I was driving after a few weeks post mastectomy.I wore a singlet and loose shirts until I could wear a post surgery bra and soft form(a few weeks after) and I got fitted with a prosthesis at about 6wks.
At first I was glad to be rid of a cancerous breast and I was in survival mode but as time went on, I experienced various emotions.It can sometimes hit you down the track.
Take time out to fully recover and do nice things for yourself.Sending hug.