Comfrey, feverfew and fennel are also very good for colds. As is garlic and honey. Be careful with Echinacea as it is an immune system "booster" if you have immune issues (lupus, crohns, any other auto immune diseases you will do more damage than good). If you have a normal immune system, then it can be very effective! Goldenseal is very good also same contraindications there though.
An excellent tea to brew and sip on for a cold:

1tsp feverfew
1tsp rosehip powder/or 6 hips
1finely chopped garlic clove

2 cups water simmer for 10 minutes allow to cool to drinking temp add honey to taste and sip 1/2 cup every hour.

Just my 2 cents
hope you feel better
Kym