Hello and welcome to healthcaremagic
Itchy bumps in the genital area, suggests to me a possibility of
Scabies.
Scabies is caused by an itch mite called sarcoptes scabies. Clinically it presents as itching (nocturnal) and bumps resembling mosquito bite distributed over the genitals, lower abdomen, thighs, buttocks, chest, arms and hands.
There can be family history of itching in other family members or close contacts.
Treatment is single whole body application of 5% permethrin cream/lotion from neck downwards, which is left overnight (for at least 8 hrs).
An OTC antihistamine e.g
cetrizine 10 mg once daily would provide symptomatic itch relief.
It is advisable to treat all the family members in the same way.
Clothes, bed sheets, towels, pillows etc all should be thoroughly washed or dry cleaned before using them again after treatment.
regards