what are the differences between cold and flu

Both the cold and the 'flu are caused by viruses. The common cold is caused by a wide variety of them. Flu (Influenza), is caused by three types of influenza viruses: influenza type A, B and C. The Type A virus tends to cause more severe illness than the other two, and it has been reported that a new strain of Type A influenza virus emerges every ten years or so to replace the pre-existing strain.

It is easy to tell the difference between the flu and a simple cold.
The flu makes you miserable and the flu's symptoms come on suddenly (within three to six hours) and include a high fever of 38 to 40 degrees Centigrade(102ºf), headache, often severe aches and pains, tiredness, weakness and chest discomfort or coughing. Sometimes it involves a stuffy nose, sneezing and sore throat.
A cold, on the other hand, rarely causes more than a mild fever, headache, exhaustion or aches and pains. Its most obvious symptoms are a stuffy nose, sneezing, sore throat and a mild to moderate cough.
It is important to see your doctor for evaluation if any of the following occurs:
Severe, continuous vomiting or diarrhea lasting 8 hrs. or any vomiting and diarrhea not improved after 24 hrs; fever over 39 degrees Centigrade (102ºf), earache, shaking chills, difficulty breathing, skin rash, unusual lethargy or delirium, change in cough or nasal secretions to thick green or gray, uncontrollable cough or cough sounding like a "seal bark"

Alternative first aid for cough and sore throat:
Rest. Drink extra fluids. Gargle with warm salt water..
Chamomile tea is particularly effective in treating pain because of its soothing nature, and can be taken by all age groups. Sage is beneficial in treating pharyngitis and other throat pains by reducing inflammation and protecting the mucous membranes of the mouth and throat.
Garlic, a natural antibiotic, can be helpful in the speeding up of recovery and removal of bacteria; Garlic can be taken in pill form by all age groups
An infusion of fresh Thyme with the addition of a teaspoon of lemon juice and a teaspoon of honey is very effective, this can be taken three times a day.

Essential oil:
put a drop of Tea Tree oil, Clove oil or sweet thyme oil on your tooth brush, the normal amount of tooth paste and brush your teeth normally; the essential oil act as a potent disinfectant, mixed with the tooth paste.

Homeopathic remedies:

Nux vomica: sensitive to least draught; sneezing from itching in nose, throat, trachea; great heat, burning but if uncover become chilly

Best alternative treatment:

Acupuncture:
eliminate symptoms, facilitate recovery, boost immune system
Homeopathy:
Clear symptoms quickly

Essential oils:
antiviral, antibacterial, decongestant

At Cure by Nature with use a combination of treatment to treat colds and flu:
acupuncture is an excellent treatment to boost immune defences and alleviate symptoms; combined with Cure By nature specially formulated homeopathic combinations, we help people make a good recovery