Hyperhidrosis (excessive sweating) Hyperhidrosis is a common problem faced by many individuals. While this condition is generally physiological, it can sometimes be associated with medical conditions, such as thyroid disorders. Therefore, it is better to seek a consultation if you are facing this problem. If the hyperhidrosis is associated with underlying medical problems, the underlying conditions need to be treated. For the majority of people who are otherwise healthy, the hyperhidrosis can be reduced to achieve a better quality of life. In milder instances, the condition can be improved by local application of medication. For more severe cases, oral medication or botulinum toxin injections may be useful. However, oral medication may be associated with various side effects, such as palpitations, sedation, blurred vision and dry mouth and should be used only after careful consideration. In recent years, botulinum toxin injections have been used to achieve good control of sweating on the palms and axillae lasting for several months after each treatment.