Why don't medical fever-reducing patches feel cold?
Oct 09, 2023
Source: Cainiu Health
Dr. Yang Shuwen
Introduction
Under normal circumstances, medical fever-reducing patches do not feel cool because their composition is a hydrophilic polymer gel that does not contain cooling medicinal ingredients. Medical fever-reducing patches utilize the internationally prevalent TDDS (Transdermal Drug Delivery System) technology to allow water and medication to penetrate through the skin. They then achieve a fever-reducing effect through the physical process of water evaporation absorbing heat.
Under normal circumstances, medical fever-reducing patches do not feel cold because their composition consists of hydrophilic polymer gels that do not contain cooling medicinal ingredients. The detailed explanation is as follows:
Medical fever-reducing patches utilize the internationally prevalent TDDS (Transdermal Drug Delivery System) technology to allow water and medication to penetrate through the skin. They achieve fever reduction through the physical process of water evaporation absorbing heat. These patches typically consist of a non-woven fabric base coated with a self-adhesive layer of hydrophilic polymer gel, covered by a protective release liner. Medical fever-reducing patches are applied directly to areas such as the patient's forehead, neck, or groin, and can also be placed on the forehead or underarm regions.
The primary mechanism of medical fever-reducing patches is the evaporation of water within the gel, which draws heat away from the patient’s body, thereby reducing body temperature. These patches generally do not feel very cold because they are made of hydrophilic polymer gel without any cooling agents, minimizing the risk of discomfort for the patient.
It is recommended that medical fever-reducing patches be used under the guidance of a healthcare professional. Patients should avoid self-administration to prevent potential adverse reactions.
