You are currently taking Avil (pheniramine) for allergy, Taxim O (cefixime) for potential infection, and Dolo 650 (paracetamol) for pain. Sometimes, deep tissue inflammation from a bite takes 48 to 72 hours to start settling. To help, please keep your leg elevated and apply a cool compress. Since you are having difficulty walking and persistent hardness, it is very important to consult your prescribing doctor. They may need to re-evaluate the bite to ensure the infection is responding well to the current antibiotic. Please seek immediate care if you develop a fever or if redness spreads rapidly.