The majority of colds will clear up in a week or so. Some colds open the door to other illnesses. Bacterial infections may gain the upper hand when your defences are down. Bacterial infection may develop in the ears, sinuses, airways and lungs. People with other lung problems such as asthma, emphysema or chronic heart are at risk.
Antibiotics only attack bacteria and have no effect on the cold virus.
On the other hand, cold symptoms can be greatly helped. Antihistamines and decongestants clear nose, sinus and ear congestion. Paracetamol can relieve muscle aches and pains and reduce fever. Nasal decongestant sprays may be useful when your nose is blocked. They should not be used on a long term basis.