Speechless

Was sick for almost a month. Out of the blue someone (A) very closed to you asked me(B)

A : Why you want to go back to see this doctor? She seem like what to overcharges you by giving you so many medicines

B : Think it will be better for me to returned to the same doctor as afraid my chest infection not fully recovered. The minutes i completed my antiobiotics, i started to fall sick again in the following day.

A : It seem like you like to see expensive doctor and eat medicines.

B : Not like that, just returned to the same doctor as the doctor might know what medicines are more suitable for me. Else do you suggest i should not see doctor or take medicines when i'm sick to cut costs?

A : That's would be better.

B : (Goes speechless) and walk off..

What do u expect me to response to this person?