In a nutshell, an allergy can be defined as an abnormal reaction from an individual’s immune system normally against a harmless substance. Individuals with no allergies would not have a reaction to these substances, or allergens, but the body’s of those who do release certain chemicals and it is these that cause the allergy symptoms.

An allergy can range from such things as itchy eyes to rashes to runny nose and is so widespread that they can affect 25% of the population at some stage of their lives. People have to be aware though, that these symptoms can be caused by factors other than an allergy as well, and could well be from a disease instead. More or less anything can be classed as an allergen for an individual but the most common come from pollen, dust mites, pets, insects, industrial chemicals, certain medicines and some foods like eggs and milk.

Common Allergic Reactions

The immune system of an allergic person reacts by producing special kinds of antibodies called IgE when it thinks it is being “damaged” by an allergen, and these antibodies attack the invader. This procedure then causes other blood cells to discharge other chemicals, which together with the antibodies cause the allergic reaction symptoms.

Food Allergies

Motion sickness can also be referred to as travel sickness and is caused by recurring movements when traveling.  Symptoms of motion sickness include, feeling sick, headaches, light headedness or perspiration.  The reason for these symptoms occurring is down to the brain receiving mixed messages from what your eyes are seeing outside the mode of transport compared to the messages being sent by the inner ear when these bumps are felt.  Motion sickness can also occur when trying to read while traveling.

Motion sickness can be quite frequent in children but luckily many find this can disappear as they get older. Some people are more prone to motion sickness and can also develop similar symptoms on fairground attractions, particularly those which involve spinning around.  Most sufferers find that the symptoms will disappear once they have completed their journey or finished their fairground ride; for the unlucky few, symptoms can last for a few hours or even longer.

There are some ways to avoid motion sickness symptoms such as sitting in the front of a car or if in the back usually sitting by the window with the window open can help.  It can also help to sleep or just keep eyes closed.  It can also help to keep to simple foods before traveling to avoid nausea.  There are also over the counter medicines which can help to prevent or reduce the symptoms of motion sickness.  These types of medicines are best taken before traveling but can also help if taken during the journey.  Some medicines for motion sickness can cause drowsiness so it is recommended not to drive or work with heavy machines.

Acne can be described as a condition of the skin where inflamed spots build up, and it is a fairly common condition. They generally appear on the face and neck areas but can also emerge on the back, shoulders and less commonly, other areas of the body.

Acne

Acne is a direct result of an oily substance known as sebum that is secreted from the sebaceous gland. These glands are found at the end of each one of the thousands of hair follicles found on the skin. When there is an overproduction of sebum (this can be caused due to a variety of reasons), it tends to “mix” with dead skin cells which has the effect of blocking the hair follicles.

Sometimes these blocked follicles rupture, causing inflammation which could itself lead to cyst-like spots forming, and it is these that sometimes leave the scars when they disappear.

Contrary to popular belief, there is really no scientific basis that says eating a particular food (chocolate or fried foods, for example) makes an outbreak of acne any worse than it is, but some common triggers known to cause an acne outbreak include sitting exams or starting a new relationship (in teenagers) and the wearing of certain cosmetics, just before a period or pregnancy (for females).

Acne normally affects younger people due to increased levels of hormones in their bodies and the main symptoms of the condition range from little white spots that are pretty painless, to large red-colored cysts full of pus and sebum and which can be sore.