PL do simple blood test like CBC ,ESR,VDRL before to stert any treatment.as there is infection.
Next Steps
till that time,don't hurt the part by finger or squeeze to remove pus.gently clean it with betadine wash.keep the part clean & dry.
Health Tips
post investigation report,consult doctor &take proper treatment to get rid of it.
In my opinion it correctable with right homeopathic medicines.