Thanks so much for reaching out. It looks like you have an infected abscess. This is a serious situation and you likely need to have it drained immediately. You Should be seen immediately by qualified surgeon.I hope this helps :-)
Arian Mowlavi, MD, FACS (license on probation) says:
Brief exposure like walking by someone is not going to affect your BBL results; the most important factors to your success are technique of fat harvest, processing, and grafting.
Thanks for the question. You should be able to go on vacation by 3-4 weeks after your surgery. But this is valid only with assuming postoperative recovery is uneventful. If any unexpected incident happens in your treatment process, this time can be extended or shortened. I wish you all the best.