Botulinum toxin therapy has several medical uses. In dermatology, it is widely used to reduce the effects of aging and to treat a medical disease known as hyperhidrosis (excessive sweating). The following are common dermatologic conditions where botox injections may be used to treat:

  • Reduce the appearance of signs of aging on the face- frown lines (fine lines that appear between the brows), crow’s feet (lines that appear near the eyes), lip lines, dimpling of the chin
  • Improve the appearance of the mouth and surrounding area- lift the corners of the mouth, soften a square jawline, correct a gummy smile
  • Reduce excessive perspiration in the underarms when topical treatment is ineffective.
  • Improve the appearance of neck bands

Risks Of Botulinum Toxin Injection

Adverse effects of botulinum toxin injections are more frequently observed in therapeutic uses for medical concerns rather than cosmetic purposes due to the higher dosing required. When they occur in a dermatologic procedure, side effects can be mild to moderate but are usually self-limited. Complications can include:

  • Symptoms due to the use of anesthesia

    Bruising, edema, or pain at the injection site can develop due to the injection of anesthesia.

  • Periorbital symptoms

    Blepharoptosis (low-lying upper eyelid margin ) and eyebrow ptosis (descent of the eyebrow from its natural position) can occur and last for three months when botulinum toxin is injected near the eyes.

  • Allergy

    Though rare, some can have allergic reactions to the toxin.

  • Headache

    Headaches and flu-like symptoms are sometimes reported.

  • Problems with smiling

    A crooked smile can be a temporary side effect and can also cause drooling.

Tired Of Signs Of Ageing?

Botox may be the right treatment to reduce signs of ageing. Consult our MOH-accredited dermatologist for a detailed evaluation and a personalised treatment plan.

Dr Noor Hanif Said

Medical Director & Consultant Dermatologist

Over 20 years of experience
in medical, Surgical & aesthetic Dermatology

  • Bachelor of Medicine, Bachelor of Surgery (MBBS, Singapore)
  • Membership of the Royal College of Physicians (MRCP, United Kingdom)
  • Fellow Of The Academy of Medicine, Singapore (FAMS, Dermatology)

Prior to starting his private practice at Mount Elizabeth Novena Specialist Centre, Dr Hanif was a dermatologist at the National Skin Centre and a Visiting Consultant with the Khoo Teck Puat Hospital Dermatology Service.

Apart from his expertise in the management of general dermatological problems such as eczema, psoriasis, hair loss and acne, he has special interests in pigmentary disorders and aesthetic dermatology.

Botulinum Toxin Injection Procedure

The procedure for botulinum toxin injection is fast, minimally invasive, and is typically done on an outpatient basis in your dermatologist’s clinic. You can expect the following to occur before, during, and after the procedure.

  • Before the procedure

    Inform your doctor if you’ve had any Botox injections in the last four months, and if you are taking any muscle relaxants, sleeping aids, or allergy drugs. If you are taking blood thinners, you will be instructed to discontinue them several days before your injection to lower your chance of bleeding or bruising.

  • During the procedure

    Botox injections are often administered at a dermatologist’s office. Depending on your pain tolerance and indication for the procedure, sometimes an anesthesia (numbing agent) may be injected into the site. Then, a small needle is used to inject small doses of botulinum toxin into your skin or muscles. The number of injections required is determined by a variety of parameters, including the size of the area being treated.

  • After the procedure

    You will usually be instructed to avoid rubbing or massaging the treated areas in the first 24 hours after the procedure. This prevents the toxin from spreading to another location. You can resume your regular daily activities immediately following the procedure.

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    Frequently Asked Questions

    Will I be unable to make facial expressions following treatment?

    Dermatologists prefer that their patients appear natural. To accomplish this, they inject just enough to weaken and relax the targeted muscles while leaving other muscles alone. Patients are able to preserve their normal facial expressions as a result of this.

    Will I lose feeling in the areas where I have the injections?

    No. This treatment has no impact on your ability to feel.

    When is it safe to start another treatment session?

    When excessive sweating or lines and wrinkles return, you can have another treatment. Repeat therapy for lines and wrinkles may cause the muscle to thin, resulting in longer-lasting results.

    When can I see the results of botulinum toxin injections?

    You may notice some effect within a few days, but the full effect may take up to a week. The results can last three to four months after which you can receive another injection.