I had a pretty bad sore throat and cough. a couple friends contracted it from me before i started taking antibiotics. i've been near them a lot and am feeling sick again. is it possible to catch what i already had even though i'm on antibiotics?

See your doctor: Wear a mask around others too, so this doesn't spread to others and protects loved one. If you never resolved it the first time with the right antibiotics, you could still have residual infection. Hydrate, rest, use cold most humidifier and reduce holiday stress, no alcoholic beverages too. Keep a simple diet without processed or sugary foods or drink. Time to get rid of the cold for good!