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Sclerotherapy is a non-surgical treatment for varicose veins and spider veins. A specialised solution is injected directly into the affected veins, improving the appearance of varicose veins and relieving associated symptoms over time. 


We offer sclerotherapy as a safe and reliable treatment for patients with varicose veins and spider veins at our clinic. Contact us today to schedule a consultation and receive a tailored treatment plan for the best possible outcome.


What You Should Know About Sclerotherapy

What Is Sclerotherapy?

Sclerotherapy is a minimally invasive procedure for treating varicose veins and spider veins. It involves injecting a solution directly into the affected vein, which causes the vein to collapse and eventually disappear.

The solution irritates the lining of the vein, leading to the formation of scar tissue. After a few weeks, the scar tissue causes the vein to close. 


Sclerotherapy is a safe and effective treatment for varicose veins and spider veins.


Why Is Sclerotherapy Needed?

Sclerotherapy is used on patients with varicose or spider veins. Sclerotherapy is often used to treat visible, smaller veins that are not causing any symptoms. However, it can also be used to relieve discomfort caused by larger veins. The minimally invasive treatment is suitable for those seeking to improve the appearance of their legs or alleviate pain associated with varicose veins.


However, sclerotherapy cannot be administered to patients with deep vein thrombosis, a present blood clot or pregnant women.


What Are The Possible Risks And Complications?

Sclerotherapy is considered a safe and effective treatment for varicose and spider veins. However, like any medical procedure, there are potential risks and complications. The most common complication is the formation of small blood clots in the treated veins. These clots may cause pain and inflammation, but they typically resolve on their own without treatment. 

Other possible complications include: 

Overall, the risk of complications is low, and most people experience few side effects after sclerotherapy.



Before undergoing sclerotherapy, patients will consult with Dr Desmond Ooi to assess if they are a suitable candidate for the procedure. During this consultation, Dr Desmond will also discuss the potential risks and benefits of the procedure and any pre-procedure instructions that need to be followed. 


These instructions may include:

  • Avoiding certain medications

  • Refrain from shaving the affected area 

  • Wearing loose clothing to the appointment 

  • Refrain from smoking and alcohol consumption


Dr Desmond will also conduct an ultrasound scan to diagnose the condition and assess the affected area before the sclerotherapy treatment.


What Happens During Sclerotherapy?

During sclerotherapy, Dr Desmond Ooi will clean the affected area, and use a fine needle to inject a solution into the vein. The procedure is usually done on an outpatient basis and takes about 30 minutes to an hour, depending on the number and size of veins being treated. Patients may experience mild discomfort and cramping in larger veins.



​​Patients are recommended to lie down for an additional 15 minutes after the procedure. Patients are then free to go home and are advised to wear compression stockings to help improve blood flow and reduce the risk of complications. Patients should follow the post-procedure instructions carefully to ensure optimal recovery.

Will My Blood Flow Normally After Sclerotherapy?

Blood flow will return to normal after sclerotherapy. The body will reabsorb the treated veins, and blood will flow through healthy veins. In fact, sclerotherapy can improve blood flow by reducing the amount of blood that pools in the affected veins.

What Is Recovery Like After Sclerotherapy?

Patients can resume their normal activities right after the procedure. Patients can continue exercising, but it is advisable to take it easy for the first few days and avoid strenuous activities or heavy lifting. 


To promote healing and prevent complications, it is important to follow some precautions after the procedure. Patients should avoid anti-inflammatory medication, hot baths, and direct exposure to sunlight. Compression stockings are also recommended to help reduce swelling and promote blood flow.

  • Can medication and compression stockings treat varicose veins?
    Medication and compression stockings may help with mild symptoms but it doesnot treat the root cause of varicose veins. The most effective treatments are through surgery and minimally invasive procedures.
  • Can I get my varicose veins treated if I am diabetic?
    Diabetic patients can get their varicose veins treated using minimally invasive techniques that leave minimal wounds that heal well.
  • How long is the stay in hospital after varicose vein treatment?
    Varicose vein treatments are usually done as a day surgery. Patients will be discharged after the procedure.
  • How soon can I return to work after treatment?
    While Dr Ooi provides his patients with a 2 week medical certificate, some patients may be able to return to work within 4-5 days.
  • Can I exercise after varicose vein treatment?
    Low-impact exercises like walking are allowed after treatment, but patients should avoid strenuous exercises for at least a week.
  • Where does my blood flow once the damaged veins are removed?
    The blood in the affected veins will reroute into your healthier veins and flow normally after varicose vein treatment.
  • Will my insurance cover varicose vein treatments?
    Depending on the severity and symptoms of your varicose veins, your treatment can be insurance claimable. Contact our clinic to find out more information on your out-of-pocket fees.

Dr Desmond Ooi: Sclerotherapy Treatment in Singapore

Dr Desmond Ooi offers sclerotherapy treatment in Singapore to patients suffering from varicose and spider veins. Dr Desmond Ooi has extensive knowledge and training in treating varicose veins and other venous disorders and is skilled in performing sclerotherapy. 


Dr Ooi and his team of healthcare professionals are committed to providing personalised care and support to each patient, ensuring their needs and concerns are addressed throughout the treatment process. Make an appointment with Dr Desmond Ooi for your varicose vein treatment.

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