Thanks for posting your query.
Let me know the exact status of your father's right foot.
This is actually a boil or right big toe joint inflammation
due to increased uric acid
You should consult with internal medicine specialist/ rheumatologist
and should go for thorough check up.
If boil is present then complete antibiotic course is mandatory. If big boil is present then incision & drainage
may be required.
He should go for repeat uric acid level for better clarification.
If effect of increased uric acid is present then uric acid lowering medications should be taken.
Dr. Mayank Bhargava