Waxing is probably the most effective method overall.
I suggest you get waxing done professionally, but you can do it yourself at home.
Home waxing kits are available.
Chest hair waxing step-by-step instructions:
Prepare the wax due the supplied instructions
1) Apply little bit of wax to your skin, following the direction of hair growth. About 4 or 5 inches wide.
2) Press the cloth strip on top of it and stroke it firmly several times.
3) Hold the skin taut take one end of the cloth strip. Now take a towel into your mouth and pull the end of the strip back quickly, against the direction of hair growth.
4) Pressing on the area with your hand quickly afterwards can help with any discomfort.
God Bless You!