Boy that brings back memories! I used to be the same way. I have a vivid memory of being 6 and my mom and dad forcing me to take liquid medicine and me throwing it up. To this day I refuse liquid medicines. I have learned take pills and strips. If I have to take a pill that has a bad after taste I will use something strong like chocolate milk/mint ice cream as a chaser.
Here are some medicine tips I found from http://parents.berkeley.edu/advice/health/misc.html
• Wash down every dose with chocolate milk, get a star/sticker if it's taken without TOO much fuss, and a small pre-agreed reward (toy, treat, outing) at the end of it all. (Do allow for some fussing anyway - there has to still be the prize at the end).
• Suppositories - There's an alternative to Tylenol by mouth; it's called FeverAll, and it's an acetaminophen (the same medicine as Tylenol) suppository. It comes in strengths small enough for infants. Just a little lubricant (e.g. Vaseline), up the bottom, and that's it. Ask your local pharmacy. You can also try to hide the Tylenol drops in yogurt, fruit sauce of milk
• Cold medicine: look for chewable tablets for children. We just tried this with our 18-month old and it totally works. Triaminic children's chewable. Ask your doc first. He popped it right in his mouth where it immediately dissolved.
• Dr. Sears' method: You make a ''cheek pocket'' by pulling back one cheek and deposit the medicine a small amount at a time into the cheek pocket. It runs down the side of the mouth so the child can't spit it out and it avoids most of the tongue so he or she don't taste much of it. You can buy big medicine droppers in most drugstores marked in teaspoons or whatever you need.
• Experiment with the different flavors
• my five-year-old NEVER liked liquid medications, so I gave her a pill (Advil, it's candy-coated), and that's all she'll take now
• chocolate syrup
• Just wanted to pass along this tip to other parents: Recently my son was prescribed some medicine which only came in pill form. He had never swallowed a whole pill before and the bitter taste made chewing the pill unbearable. My husband came up with the idea of inserting the pill (broken in half) into red vine licorice (which my son likes) by cutting a small sections of the vine, opening the ends and shoving the pill inside.
Good Luck!!