My grandmother has this problem at her house, but it was caused by copper pipes with too much hard water buildup. I do not know how to solve that problem.
Hopefully an aerator is all you need. If you have to remove a cartridge, that still isn't too bad. Do you have a small independent hardware store nearby? If you do, there usually is a guy who can examine your faucet part, and know within seconds what part you need. This becomes even more valuable because sometimes you can't see a part number or even a brand on some old faucets.
One thing to remember with replacing cartridges: They can get stuck, and you might need an extractor that matches your faucet cartridge. Use it with care, and hopefully you don't damage the faucet.
About a month ago, I noticed that the original faucet in my mothers house had chrome flaking away, and mold growing where the chrome had flaked away. I spent about $55 on an American Standard with a speed connect drain, and I am very happy with it.
Some faucets that are included in a new house have solid copper pipes permanantly attached to the base. If you have that, be ready to buy some faucet connection hoses for around $8 each. I used Fluidmaster because there were adapters for multiple thread types.