Alah, jangan risau lah mama, memang dekat 38 minggu ni keputihan akan bertambah dan kadang-kadang gatal sikit, tu normal semua orang pun sama! Doktor dan nurse dah bagitahu okay dah (dan yang paling penting xde bau), so trust them lah, they know what they're looking at. Memang yogurt tu bagus for balance, tapi honestly a few of my mum friends cakap just keep the area clean and dry je (yang mana you dah buat), and the itching will come and go until delivery, tak apa. Since this is getting close to birth, if it gets worse suddenly or bau jadi off, baru lah text doktor or nurse, tapi so far dengar dari apa yang you describe, you're good! Breathe lah mama, first baby memang banyak worry hehe.