Kyolic, while not bad, has most of the medicinal properties of garlic removed with the smell. Those a sulfurous in nature, and that is why they stink. Raw crushed garlic, allowed to oxidize for 30 minutes will help much better. To fight the bad breath, chew on a parsley sprig, and you won’t have a problem.
If you wish to try fighting a cold, try echinacea and elderberry extracts. Those have been used for millenia and were scientifically proven to significantly lessen the duration of viral colds. Both can also prevent a cold.
For sinus congestion and throat irritaion, use eucalyptus oil in a steaming hot bath or another method of inhalation. You will cough your lungs out from the initial irritation this will cause, but a great amount of foul mucus and gunk will come out, making you feel better AND allowing better air circulation in your nasal passages after.