Sayang, cyst ni memang kena tengok doctor dulu untuk confirm what type it is, ada yang boleh hilang sendiri, ada yang perlu treatment, jadi jangan tunggu lagi, book appointment je sama GP atau specialist. A few of my mum friends ada yang dulu ada cyst tapi settle dengan antibiotics or hormonal changes, tapi kena proper diagnosis dulu before apa pun. Mungkin dermatologist or gynae depends on location cyst nya, they'll advise if it needs shrinking cream, tablets, or minor procedure. Jangan risau, most cysts are benign, but you really need to get it checked out so doctor can give you the right plan!