Hello
He is suffering from cellulitis which is infection of the subcutaneous tissues
Is he
diabetes
Is he taking any treatment.
Next Steps
he need to get treated immediately.
cellulitis can spread and cause problems.
he shuld be started on antibiotics.
Health Tips
use mositerizer
keep away from heat.
keep leg elevated.
u can do direct online consulation with me so I can suggest you further treatment.
tc