What Is Phototherapy?
Phototherapy is a medical treatment that uses specific wavelengths of light, usually ultraviolet (UV) light, to treat various health conditions. It is most commonly used in dermatology to manage skin disorders such as psoriasis, vitiligo, and eczema.
In this procedure, the affected skin is exposed to controlled light sources like UVB or UVA rays. In some cases, a special medication (photosensitizer) is used along with light exposure to enhance effectiveness. The therapy works by slowing down abnormal skin cell growth, reducing inflammation, and helping restore normal skin color.
Phototherapy is also widely used in newborn babies to treat neonatal jaundice, where light helps break down excess bilirubin in the blood.
It is considered a safe, non-invasive, and effective treatment option, especially for patients who do not respond well to topical medications.
Purpose & Benefits of Phototherapy
Phototherapy offers multiple benefits for both skin conditions and other medical issues.
• Treats skin disorders: Effective for conditions like psoriasis, vitiligo, and eczema.
• Reduces inflammation: Helps calm redness, swelling, and irritation in the skin.
• Slows skin cell growth: Especially useful in psoriasis, where skin cells multiply rapidly.
• Improves skin appearance: Helps restore pigmentation in conditions like vitiligo.
• Treats neonatal jaundice: Helps newborns eliminate excess bilirubin safely.
• Non-invasive treatment: Does not require surgery or major procedures.
Overall, phototherapy is widely preferred because it provides effective results with minimal discomfort.
Who May Benefit from This Procedure?
Phototherapy is recommended for patients with specific conditions.
• Individuals with psoriasis or eczema not responding to creams or medicines.
• Patients with vitiligo (loss of skin pigment).
• People with chronic skin inflammation or itching.
• Newborns with jaundice (high bilirubin levels).
• Patients needing long-term skin condition management.
Doctors assess the severity of the condition and the patient's history before recommending phototherapy.
Phototherapy Procedure
1. Initial Consultation
The doctor evaluates the skin condition, medical history, and suitability for phototherapy.
2. Preparation
The patient may be asked to remove topical products. Protective eyewear is provided to safeguard the eyes.
3. Light Exposure
The affected area is exposed to controlled UV light using a special phototherapy device.
4. Controlled Dosage
The doctor adjusts the intensity and duration based on the patient’s skin type and condition.
5. Completion
The session ends within minutes, and patients may require multiple sessions over weeks.
The procedure is painless, though a mild warm sensation may be felt.
Duration & Therapy Setting
Phototherapy sessions usually last a few seconds to several minutes, depending on the condition and treatment plan.
The treatment is performed in clinics, dermatology centers, or hospitals. Patients typically require multiple sessions per week over several weeks for effective results.
In neonatal care, phototherapy for jaundice may be continuous over several hours or days under medical supervision.
Safety, Precautions & Risks
Phototherapy is generally safe but may have some minor side effects.
Common Effects
• Mild redness or irritation
• Dry skin or slight itching.
Possible Risks
• Sunburn-like reactions
• Skin aging with prolonged exposure
• Increased sensitivity to light
Precautions
• Wear protective eyewear during treatment
• Avoid sun exposure after sessions
• Follow doctor’s instructions on skincare
• Inform doctor about medications causing photosensitivity.
Proper supervision ensures safe and effective treatment outcomes.
Types of Phototherapy
Phototherapy can be classified based on the type of light used:
• UVB Phototherapy: Most commonly used for psoriasis and vitiligo.
• Narrowband UVB: More targeted and effective with fewer side effects.
• UVA Phototherapy (PUVA): Combined with medication for deeper skin penetration.
• Blue Light Therapy: Used for neonatal jaundice.
Each type is selected based on the patient’s condition and treatment goals.
Recovery After Procedure
Phototherapy does not require significant recovery time. Patients can usually resume normal activities immediately after each session.
Some individuals may experience mild redness or dryness, which typically resolves within a few hours. Moisturizers and proper skin care are often recommended.
Since treatment requires multiple sessions, regular follow-ups are important to monitor progress and adjust therapy. In neonatal cases, recovery depends on bilirubin levels and medical supervision.