Deduction under 80dd

The relevant portion of section 80DD.  (1) Where an assessee, being an individual or a Hindu undivided family,  who is a resident in India, has, during the previous year,—

          (a)  incurred any expenditure for the medical treatment (including nursing), training and rehabilitation of a dependant, being a person with disability; or...

So, deduction u/s 80DD is allowed only for medical expenses of dependent with a disability.