Regarding the treatment, when forming cysts, if it has a great impact on life, you can choose surgery. After all, it's uncomfortable to grow a lump below. However, the cyst is small and has no effect, so you can not have surgery for the time being. You must do this when an abscess forms. Generally speaking, the surgical method is ostomy rather than cyst resection. Because after resection, the vestibular gland has no function.
1 Of course, ostomy can't last long, because the cyst is formed because the opening of vestibular gland is blocked and mucus can't come out. If the artificial mouth stays for a long time, it will recur in the future. It's not contradictory at all, but you don't understand.
2, normally speaking, after surgery, anti-inflammatory treatment for a few days, redness and swelling will completely subside, one month after surgery, basically all grow well, artificial stoma has also been formed. You are now more than 20 days after the operation. It is not normal to have pus. If it is only transparent mucus, it may be secreted by vestibular glands, but it is okay. Some cysts are swollen, which may be because the previous inflammation has thickened the local tissue, so it should be recovered slowly. I suggest you see a surgeon. After all, on the internet, it is impossible to make an accurate judgment without seeing the illness based on your own description.
3, rest for about half a month, you should be able to go to work. And it's a rest, not letting you lie completely in bed and do nothing. It's been more than 20 days since the operation, so I should be fine standing and walking, just like I was not sick before. Just pay more attention to hygiene, don't wear tight underwear, don't use pads frequently, and keep the vulva clean.