Thanks for query,
It seems that you might have following problems,
Formation of corn,
on the part with super added infection.
as you said it is common with you.
To rule out go for X ray
of the foot and rule out fracture.
If there is a corn,go for removal or apply corn cap.
if there is forming abscess
then go for antibiotic medicine.
Consult your doctor and get examined.
Ok and bye.