What should be paid attention to when using Heat Pack?

<p><strong>Using&nbsp;</strong><a href="https://www.prpatch.com/product" rel="noopener noreferrer" target="_blank" style="color: rgb(40, 148, 199); background-color: transparent;"><strong><a href="https://www.prpatch.com/" target="_blank">Heat Pack</a></strong></a></p><p>When used, it is attached to the shoulder, back, waist, stomach, legs, and related joints of the human body. When used, it only needs to be attached to the corresponding part, and it can be heated immediately. The temperature is up to 68 °C, with an average of 53 °C. The duration of clinical testing was at 12 hours.</p><p>