Thank you everyone for help so far.

I learn and be faster for help I receive from group.

Next problem for me is the spider who climbs wall in corridor before the monster who has babies come from the mouth. When I get a poison my health goes away even if I spray or use the green herb and then I die because I am dragging leg to monsters babies.

Why would game exist so a spider can kill you without heal?

You need to pick up a blue herb for the spider poison. If you get poisoned there is one in the save room before you fight g embryo.

I thought blue herb was only decoration.