Sweating is a natural bodily function that helps maintain a normal body temperature. However, when sweating becomes excessive and occurs without an obvious trigger, it may indicate a condition known as hyperhidrosis. The condition can interfere with everyday activities, cause physical discomfort and affect a person’s emotional well-being.
Ajay Rana, Founder and Director of ILAMED and President of the Indian Society of Aesthetic Medicine (ISAM), emphasises the importance of identifying the underlying cause of excessive sweating before deciding on an appropriate treatment. Understanding the condition and recognising its symptoms can help individuals seek timely medical advice.
What Is Hyperhidrosis and What Are Its Symptoms?
Hyperhidrosis is a condition in which the body produces more sweat than is necessary to regulate its temperature. It can affect particular areas, including the palms, soles of the feet, underarms and face, or occur across larger parts of the body.
People with hyperhidrosis may experience excessive sweating without physical exertion or exposure to hot weather. Persistent moisture on the hands and feet, noticeable sweat marks on clothing, particularly around the underarms, and difficulty handling electronic devices or carrying out professional tasks are among the common signs.
Constant moisture and friction may also contribute to skin irritation, rashes and dryness. Beyond these physical symptoms, excessive sweating can lead to embarrassment, anxiety and social discomfort, especially when visible sweat marks or body odour affect personal interactions.
Recognising these symptoms is important because hyperhidrosis can affect both daily functioning and overall quality of life.
Types of Hyperhidrosis and Their Possible Causes
Hyperhidrosis is generally divided into two categories: primary focal hyperhidrosis and secondary hyperhidrosis.
Primary focal hyperhidrosis usually begins during childhood or adolescence and may have a genetic component. It commonly affects the palms, soles, underarms and face. This type is associated with increased activity of the sympathetic nervous system, which regulates sweating, and is not necessarily caused by another underlying medical condition.
Secondary hyperhidrosis, on the other hand, develops due to an underlying health condition or the use of certain medications. Potential causes include hormonal disturbances, diabetes and other illnesses. Unlike the primary focal type, secondary hyperhidrosis may affect larger areas of the body, such as the chest, back and legs. In some cases, it can also cause night sweats.
Several factors may contribute to excessive sweating or worsen existing symptoms. These include genetic predisposition, hormonal changes associated with menopause, certain medical conditions, medications, stress, emotional triggers and being overweight.
Stress can stimulate sweat production, although its effects differ from person to person. Because excessive sweating can have multiple causes, identifying the type of hyperhidrosis is an important step towards effective management.
How Is Hyperhidrosis Diagnosed?
A dermatologist typically begins by assessing the pattern and severity of sweating. The evaluation helps determine whether the condition affects specific areas or is more widespread and whether other symptoms are present.
The patient’s medical history, current medications and possible underlying health conditions are also considered. A detailed history and clinical examination can help distinguish primary hyperhidrosis from secondary sweating and identify whether further investigation is necessary.
Treatment is selected according to the affected areas, severity of symptoms and individual medical circumstances. Options may include topical antiperspirants, oral medications, botulinum toxin injections, iontophoresis and other procedures.
Treatment Options for Excessive Sweating
Topical treatments: Antiperspirants containing aluminium chloride are commonly used as an initial treatment, particularly for focal hyperhidrosis. Available in formulations such as creams, solutions and roll-ons, they help reduce sweat production in the treated area. A medical professional can recommend the appropriate concentration and frequency of application to minimise skin irritation.
Oral medications: If topical treatments do not provide sufficient relief, a dermatologist may prescribe oral medication to reduce the nerve signals responsible for sweating. As these medicines can cause side effects, the choice of medication and dosage requires appropriate medical supervision.
Botulinum toxin injections: These injections can help manage certain forms of hyperhidrosis, particularly excessive underarm sweating. They work by temporarily blocking the nerve signals that activate sweat glands, reducing sweat production in the treated area. The effects are temporary, so repeat treatments may be necessary depending on the individual’s response and the area being treated. The procedure should be performed by a qualified medical professional.
Iontophoresis and other procedures: Iontophoresis is a non-invasive option commonly used for sweating of the palms and soles, particularly in mild to moderate cases. During treatment, the hands or feet are placed in water while a mild electrical current passes through it, helping reduce sweating. The procedure is generally well tolerated.
Other electrotherapy techniques may be considered for selected patients. In severe cases or when other treatments have not worked, minimally invasive procedures or surgery may be explored following a thorough medical assessment.
Conclusion
Hyperhidrosis is a manageable condition when its cause is properly identified and suitable treatment is provided. Whether excessive sweating affects the palms, soles, underarms or face, an individualised treatment plan can help reduce discomfort and improve confidence and quality of life.
Consulting a dermatologist is an important first step towards understanding the cause of excessive sweating and choosing the most appropriate treatment. With proper assessment and medical guidance, individuals can explore effective ways to manage the condition and minimise its impact on everyday life.