Knowledge of basic sailing terminology, parts and functions, helm commands, basic sail trim, points of sail, buoyage, seamanship and safety including basic navigation rules to avoid collisions and hazards. Auxiliary power operation is not required.
However, there are some other conditions could cause sores and blisters on the vagina: 1  Genital herpes: Genital herpes is a viral infection caused by the herpes simplex viruses type 1 (HSV-1) or type 2 (HSV-2).  A person infected by genital herpes manifests blisters and sores in the vaginal area.
Seminal fluid hypersensitivity or sperm allergy has been known to cause swelling of the vagina and vulva with associated burning, itchiness and pain. The vagina and vulva area may also change color and increase in size and appear to be swollen as a result of the hormonal changes associated with pregnancy.