thanks for writing to us.
Bump or abscess in anal area is quiet common due to hairs and abundance of bacteria in this area.
Of these the most disabling is pilonidal sinus
In this condition a large abscess is formed which rupture to discharge pus and sinus is visible as seen in your condition.
You need treatment with oral antibiotics
Please meet a dermatologist
According to me, it has no relation with your ruptured ovarian cyst