Medicines expenses without medical insurance

Hi,

This clarification for senior citizen tax filing.

He has medicines bill of 4000 rupees during FY 20 - 21, but does not have any medical insurance premium paid. How can he get tax deduction for this amount and under which section we can use in ITR 1.

He has prescripttion and medicines bill for the same.

Appreciate your answer. 

Thanks

Palanikumar