I understand your concern.
It most probably seems like folliculitis
or inflammation of the hair follicle in the outer lip of vagina.
Since there is itching, it can be a fungal infection
You should try anti-fungal ointment like clotrimazole
that is available over the counter twice daily on the itchy areas of the vagina.
Also, an oral course of antibiotic like Amoxicillin
and clavulinic acid should help in clearing away the Folliculitis.
This is a prescription drug. Please get it prescribed by your doctor.
Do not feel embarrassed to meet your GP.
I do not see a major health concern here.
Get well soon.