Do continuous white vaginal discharges invalidate the prayer, and what should be done about them?

If the discharge stops for a period allowing for prayer, then ablution is necessary whenever it exits for each prayer at its appointed time, and combining two prayers is not permissible. However, if it is continuous and does not stop, then you must take precautions and purify yourself at the time of prayer, then pray immediately, and the emission of something during prayer does not harm it. It is permissible to combine Dhuhr and Asr prayers, and Maghrib and Isha prayers according to some jurists, but it is more cautious not to do so except out of necessity.