How can I increase my supply without a pump?

[MandaMommy2]

I had a pump when LO was little because she was born early and her latch wasn't very good etc. but now the insurance won't pay for the pump because LO weight gain is good now. However I feel like I'm losing my milk. It also doesn't help that LO has been sick for the last week and isn't eating as much. What can I eat or drink to help my body make more milk without a pump? I've been drinking mothers milk tea but I don't think it's enough. I tried to pump with the hand pump and I could only get a few teaspoons. I was getting a few ounces with the pump so this is alarming.