Two things worked with my children...
My daughter was all about the control and the strangeness of the syringe so we tried giving it to her little bits at a time on one of her regular feeding spoons and she took it. When it wasn't being forced into her mouth and it didn't seem all that different from how we fed her, she was fine with it.
To combat the strong taste of it, we mixed it into one of those kids drinkable yogurts (the regular yogurt is fine, too). The doctor said it was ok to mix it as long as all of it got consumed, so we'd take about half of the yogurt and mix with the medicine. The sharp taste of the fruity yogurt totally covered the taste of the medicine.
Good luck! I know how terrible it feels when your baby is sick and you have to give them medicine they don't want but you know it will make them feel better. :(