How can the cat trust me?

Since he came home, I’ve had to give my cat eye drops and antibiotics. Every day he sits a bit further away from me. He is a bit more wary, nervous. It’s not surprising. Yesterday he was checked over by a vet and given another lot of antibiotics. I understand why, he needs them to help him heal. But it doesn’t make it any easier. If he wasn’t such a patient cat I don’t know what I would have done…. X