The red rashes on the mons pubis
will be part of the generalised urticarial eruptions you had in the past.
Unless you are examined, it is difficult to exclude a fungal infection
for which topical antifungals will work. For the dry and itchy skin, you can apply 0.1% hydrocortisone cream
twice daily for a week and stop.
Do not apply more than a week.
If after 2-3 days, it is no better, a combined cream will help.
There are triple action creams available like antibacterial, antifungal and a mild steroid
when it is difficult to exclude mixed infections.
Hope that helps.