There is no one definitive answer to this question, as it depends on the individual Frenchie's symptoms and history. However, some tips that may help include:-Checking their temperature regularly (using a rectal thermometer) to ensure they are not over the fever limit;-Checking their pulse and respirations;-If they are having trouble breathing, providing them with oxygen;-If their temperature is rising rapidly or they are having trouble sleeping, getting them to the hospital;-If their temperature is greater than 41 degrees Fahrenheit, they may have heat stroke.