firstly, most teaspoons are less than the 5ml size of a medicine spoon, so that should give you a jumping off point on how muh you were giving. I'd say maybe it's a 3 or 4ml dose in a teaspoon, depending on your teaspoons!

secondly... do you have those little medicine cups that come on top of some mouthwashes and stuff?? I've used those before, and even if they don't have the measurement on it, you can pour in the approximate dose and then use the syringe from that. Equally you can pour a bit of the medicine into almost anything and use the syringe from that. I've had to do that in the past when I could only get medicine down the kids with the syringe when they were younger.

and don't feel dumb Anne. You know we all do silly stuff like this, but obviously next time you'll have found a better way and it will be one more thing you're in control of.

I won't ask how come you had leftover penicillin... Just remember to be extra careful with antibiotics, especially for kids. Make sure you're using the right type for the right thing (though penicillin is moderately effective with a wide range of problems), and make sure you don't keep any of the antibiotics past a safe date. And make sure you have the right dosage for the right age group too since smaller kids vary greatly due to their size.

I prefer to self-medicate on most things too and you do get a feel for it, but just be extra careful with antibiotics.

Hope you sort it all out and the kids get better soon. Warm drinks, not cold if possible, but certainly plenty of fluids and plenty of rest - you know the routine!

Kerri.