This is a common question.   There is essentially no difference, Podiatry is the new name that has been given to the Chiropody profession since 1993. 

Podiatrists are healthcare professionals who have been trained to diagnose and treat abnormal conditions of the feet and lower limbs. They can also treat and alleviate day-to-day foot problems.

Chiropodist/Podiatrist  is a protected professional title recognised in law and may only be used by an individual registered with the HCPC if that practice is within the United Kingdom. 

Check your Podiatrist/Chiropodist in Llantwit Major is a member of the Health and Care Professions Council(HCPC) for your protection.