Botox: what it is, what it’s for and how to apply

Botox is usually associated with beauty treatments, but it can also achieve major results to treat medical conditions. Find out what botox is and the precautions to take.

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  • Aesthetic Medicine
Botox

Botox is widely recognised for its efficacy in facial rejuvenation, but this product’s therapeutic potential extends far beyond aesthetics. Today, botox is an effective medical tool, used not only to soften fine lines and dynamic wrinkles, but also to treat a series of medical conditions with direct impact on quality of life, safely and in a minimally invasive manner, with lasting results.

Find out what botox is, when it is indicated, what precautions to take and what you can really expect from this procedure when applied according to the highest medical standards.

What is botox?

The term “botox” refers to botulinum toxin type A, a substance that is widely used in Aesthetic and therapeutic medicine. When applied in a controlled manner, botox acts at the neuromuscular junction to temporarily relax certain muscles. This mechanism smooths dynamic wrinkles — such as forehead lines, crow’s feet or frown lines — helping create a more rested, natural and youthful appearance.

Although best known for its aesthetic use, botox has many other medical uses. It is applied to treat conditions such as chronic migraines, bruxism, excessive perspiration (hyperhidrosis) and certain neuromuscular disorders. When administered by qualified professionals, this is a safe procedure with minimal risks and predictable results, both for functional and cosmetic uses. Botox can significantly improve wellbeing, self-esteem and, in many cases, quality of life.

Where to apply botox?

Botulinum toxin is a proven clinical tool used in several areas of application.

  • 1. Forehead

  • 2. Glabella (between the eyebrows)

  • 3. Periorbital region ("crow’s feet")

  • 4. Excessive gingival display (“gummy smile”)

  • 5. Jawline and neck

  • 6. Chin

  • 7. Hyperhidrosis (excessive perspiration)

  • 8. Bruxism or involuntary jaw clenching

  • 9. Chronic migraine

  • 10. Neuromuscular spasticity and disorders

  • 11. Blepharospasm and cervical dystonia

When not to use botox?

Although botulinum toxin is considered extremely safe, there are situations in which this treatment is not advisable. A medical assessment is critical to guarantee that the procedure is suitable and does not compromise the client’s health. We list below the principal contraindications.

1. Pregnancy and breastfeeding

Due to the lack of sufficient studies proving its safety in these situations, as a precaution, botulinum toxin should not be administered during pregnancy or when breastfeeding.

2. Neuromuscular disorders

People with conditions such as myasthenia gravis, amyotrophic lateral sclerosis or Lambert-Eaton myasthenic syndrome should not be treated with botox, as this toxin may have unpredictable effects on muscle function.

3. Allergies or hypersensitivity

Botulinum toxin is contraindicated in clients with known allergies to any of the components in the formula, including albumin or the toxin itself.

4. Infection or inflammation in the injection site

If there is an active infection, inflammation or any dermatological alteration in the area where the botox is to be applied, the procedure should be postponed until the skin has fully recovered.

5. Use of certain medications

Certain drugs, such as aminoglycosides or muscle relaxants, may interfere with the action of botox. It’s essential to inform the physician about all medication being taken, including supplements and natural products.

How is botox applied?

The application of botulinum toxin is quick, safe and performed in a controlled clinical environment.

1. Individual medical assessment

The procedure is preceded by a consultation to analyse the client’s facial features, muscle anatomy and goals. This stage is crucial to guarantee that the treatment is adapted to each person’s specific needs.

2. Plan areas for application

Based on the assessment, the physician defines the exact points where the toxin will be applied. This plan is made according to the highest clinical standards, taking into account the facial symmetry, muscle strength and intended effect.

3. Minimally invasive  procedure

After disinfecting the skin, small injections are administered using a micro-needle. Discomfort is minimal and no anaesthetic is required, although a numbing cream can be applied if necessary. The procedure usually takes 15 to 30 minutes.

4. Post-procedure guidelines

At the end, the client is given certain instructions, such as to avoid lying down or physical exertion in the hours following the procedure, not massaging the treated area, and avoiding exposure to heat and ultraviolet radiation for a few days after the treatment. These guidelines help maximise results and prevent minor unwanted side effects.

Is any type of preparation required?

Although treatment with botulinum toxin is simple and quick, some precautions can be taken beforehand to help ensure greater comfort during the procedure and reduce the risk of minor undesired side effects. The preparation is easy and doesn’t require any significant changes in the client’s routine.

1. Avoid anticoagulants and anti-inflammatories

In the days before the procedure, if possible, avoid medications like aspirin, ibuprofen or other anticoagulants. This measure reduces the likelihood of bruising after the injections.

2. Provide medical history

It is essential for the client to inform the physician of chronic diseases, allergies, ongoing treatments and prior procedures in the area to be treated. This allows the specialist to adjust the therapeutic plan and guarantee total safety.

3. Clean and makeup-free skin

On the day of the treatment, the area to be treated should be clean and free of make-up, creams or other topical products, to make disinfection and botox application easier.

What results can be expected from botox?

Depending on the type of botulinum toxin applied, in most cases, the effects begin to appear gradually between the third and fifth day after application, reaching peak effectiveness at around two weeks. During this period, dynamic wrinkles become noticeably smoother — namely on the forehead, between the eyebrows and around the eyes — creating a natural but more rested and youthful expression.

On average, the results last between four and six months, depending on factors such as the area treated, the dose applied, the individual’s metabolism and repetition of the treatment. Regular applications not only maintain the desired effect, but gradually soften wrinkles over time, as the treated muscles tend to lose contraction strength.

How is the post-botox recovery?

Recovery is quick and does not require rest. Clients can resume their daily routine immediately, including work and social activities. However, in the first four hours, they should avoid lying down or physical exertion, as well as rubbing or massaging the treated area, for the toxin to remain in the exact sites where it was applied.

In the 24 hours after the procedure, avoid exposure to excessive heat, such as saunas, steam baths or direct sunlight, as well as alcohol consumption. These simple precautions help prevent minor complications, such as bruising or asymmetry. A follow-up consultation can be scheduled for approximately two weeks after the procedure to monitor results and, if necessary, make slight adjustments.

Does botox have side effects?

Botulinum toxin is a safe and well tolerated treatment when applied by qualified professionals. When they occur, side effects are usually mild and temporary. These can include slight pain in the injection site, a feeling of weight or tension in the treated area, minor bruising or oedema, which disappear gradually after a few days.

In rare cases, asymmetries or slight drooping of the eyelid (ptosis) may occur, situations that are reversible and improve as the effect of the toxin wears off. The best way to prevent complications is to ensure that the procedure is performed in a clinical environment, by experienced professionals with specific training (dermatologists and/or plastic surgeons). The client’s safety should always come first.

Botox: frequently asked questions

We answer below some frequently asked question about botox.

  • 1. Is treatment with botulinum toxin painful?

  • 2. Can I combine botulinum toxin with other beauty treatments?

  • 3. Is botulinum toxin "addictive"?

  • 4. Is there a risk of losing facial expression?

  • 5. Can botox treat deep wrinkles?

  • 6. Can botulinum toxin be used on men?

  • 7. How do I know if the treatment was successful?

  • 8. What happens if the treatment is discontinued?

Joaquim Chaves Saúde, by your side for safe botox  treatments

At Joaquim Chaves Saúde, we know that each client is unique and deserves a personal treatment plan. Our team of specialists comprised of dermatologists and plastic surgeons is ready to assess your needs and propose solutions that offer natural and safe results.

If you are considering botox as part of your beauty or therapeutic care plan, schedule your consultation and find out everything you need to know.

Clinical Team

We have a team of doctors and health professionals, specialists in various areas, available to give you the support you need.

  • Emanuel Marques
    Medic
    Emanuel Marques
    Speciality/Service
    Aesthetic Medicine, Dermatology
    Key areas of expertise
    Corrective and aesthetic dermatology, Trichology, Dermatologic surgery
    Healthcare Units
    Clínica de Miraflores, Clínica de Cascais
  • Fernando Borba Gouveia
    Medic
    Fernando Borba Gouveia
    Speciality/Service
    General Surgery, Aesthetic Medicine
    Key areas of expertise
    Abdominal Wall Surgery - Hernias, Vascular Surgery - varicose veins, sclerotherapy (drying varicose veins), Aesthetic surgery - botulinum toxin, fillers (hyaluronic acid), Minor Surgery - skin tumors and cysts
    Healthcare Units
    Clínica de Cascais

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