Hi thanks for your question.
You had a bump above your ankle and now clear fluid and puss is seeping out of the wound and you think, it is secondary to flee bite.
This is an infected wound may be secondary to flee bite or a boil.
You need antiseptic dressing of this wound
A broad spectrum antibiotic to prevent septic arthritis
of ankle joint, since the wound is very near the ankle joint.
Additionally you may need analgesic
anti inflammatory drugs ( pain killer)
Consultation with physician is encouraged.
Hope this answers your question.