how does having a cold affect the sense of taste?

Most of what we "taste" depends upon what we smell. A cold interferes with our sense of smell, so that our food doesn't taste very good then.

Check this site for more details.

http://www.jhu.edu/~jhumag/996web/taste.html

Taste of foods is closely related to smell senses. If the aromas cannot get to the smell sense organs, yes, taste is affected.

can you help me?

Of course, I'm here to help! What do you need assistance with? Feel free to ask me anything.

Yes, I can help you. Is there something specific you need assistance with?

Of course! I'm here to help. What do you need assistance with?