Skin care and UV Protection

Sun Rays

Anytime light interacts with some material, 3 things can happen. The light can be transmitted, it can be reflected, or it can be absorbed.
 If we say that light is “blocked” it means that it is either absorbed or reflected by the material.

The band of radiation of most concern from health perspective is ultraviolet or UV radiation. We cannot see the sun’s ultraviolet radiation, but it has a major impact on the human body

UVA rays (320 - 400 nm)

•Penetrate deeply into the skin
•Main cause of premature ageing
•Involved in skin cancer and suppression of immune system.

UVB rays (290 -320 nm)

•Responsible for sunburn and blistering of skin.
•Also linked to suppression of the immune system and the skin cancer.

UVC rays (200-290 nm)

•Most damaging, but do not reach the earth’s surface.

Sunscreen

Sunscreen use is an important part of the sun protection program. Used Properly, certain sunscreens help protect human skin from some of the sun’s damaging UV radiation

Causes of Hyper-pigmentation

Major external causes for pigmentation disorders

UV Rays Induced
Hormonal
Inflammation

Other Causes

Reactive Oxygen Species (ROS) Production
Health Problems
Aging

Hyperpigmentation Disorders

Melasma
Chloasma
Lentigines
Ephelides (Freckles)
PIH
Berloque dermatitis

Acne and different skin diseases

There are so many skin disease now days. The mejor cause is our life style, hormonal disbalance and pollution.the major disease are

1. Acne and classification
    Mild Acne
    Moderate Acne
    Severe Acne

2.Hyper pigmentation
    Melasma
    Chloasma (Pregnancy mask)
    Lentigines
    Freckles
    PIH

3.Fungal Infection
    Deep fungal infection
   Superficial fungal infection

4.Warts
  Common warts
  Plantar warts
  Flat warts
 Genital warts
 Periungual warts
5. Scabies
6.Psoriasis
7. Scar

Acne and its Classification

What is Acne?

 *Acne is a chronic, inflammatory disease of the pilosebaceous units of the skin
 *Acne Vulgaris’ is a common problem among most teenagers
 *Commonly called acne , pimple or zitAcne affects 80% of adolescents & 20% of adults
 *Mean age at presentation for treatment is 24 years
 *10% of doctor’s visits take place when patients are between the ages of 35 and 44 years.


Classification of Acne

1. Non-Inflammatory
Comedonal -

“Whitehead” – dilated hair follicle filled with keratin, sebum, and bacteria, with an obstructed opening to the skin

“Blackhead” – dilated hair follicle filled with keratin, sebum, and bacteria, with a wide opening to the skin capped with a blackened mass of skin debris

2.Inflammatory
Papulo-pustular
Papule – small bumps less than 5mm in diameter
Pustule – small bump with a visible central core of purulent material

Nodulocystic
- Nodule – bump greater than 5mm in diameter


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