Acne is an irritating condition that usually develops during teenage years.
Also known as "teenage pimples", acne can be an embarrassing condition for many during these teenage years.
The typical spots of acne generally start around puberty.
They can clear up, usually by 20years of age but may continue during early adult years.
Women especially can have outbreaks around menstrual cycles and menopause.
Acne usually appears around the hairline, forehead, chin, jaw line, shoulders, back and chest.
The pimples form due to an excess of sebum being produced by the sebaceous glands.
The blocked glands become infected and pimples form on the skin surface.
Some simple steps and lifestyle choices can prevent acne forming and can limit its effects.
These include:

Drink 6 to 8 large glasses of water per day.
Filtered water or mineral water is recommended.
Drinking water helps to eliminate toxins from the body via the bowel and kidneys.
Not drinking enough water can make the body feel sluggish which can prolong the effects of Acne.
Drinking Coffee and Tea can not be considered a substitute for drinking water

Bad circulation might also contribute to acne.
Regular exercise such as brisk walking, jogging and /or any aerobic exercise that stimulates the heart and lungs can have a positive effect on improving skin quality.

A vital proponent to preserving healthy skin texture and tone is vitamin C.
Vitamin C is easily lost from the body and can also be lost from fresh fruit and vegetables during extensive cooking processes.
Since vitamin C is generally in short supply in the body you may want to consider taking a supplement.

Fatty greasy foods should be avoided as these have a tendency to aggravate acne.
Lots of fresh fruit and vegetables should be eaten every day.
Avoid foods like Dairy products, Deep fried food, chocolate, chips and other similar snacks like nuts and other convenience foods.

The use of abrasive skin cleaners should be limited at the least (preferably not used at all).
A gentle exfoliant should be used.
Choose an organic (Food industry certified organic) skin cleanser to assist in eliminating chemicals from pores which might add to aggravated acne symptoms.

Several alternative therapies can be tried.
Your Natural & Alternative Practitioner may suggest:

Natural Herbal Medicine

Shiatsu

Nutritional Therapy

Homoeopathy

Naturopathy

Aromatherapy

Ayurvedic Medicine

Lifestyle changes such as switching from chemical based cleansers to Certified "Chemical Free" cleansers and toners are an ideal start to limiting the effects of acne.