Every time my husband ejaculate inside me , there will be excessive and immediate vaginal discharge . the discharge come directly even if laid on back?

Semen: The semen does run back out normally. The sperm penetrate the cervical mucous and head for the tubes to try to fertilize an egg but the other fluid remains in the vagina and trickles out.

Itching, soreness?: Do you have Itching, soreness too? Sometimes a woman may experience vaginitis from sensitivity to semen. Is this a new change? Do get checked by your GYNE. Hope that helps.