Prior to the onset of hypothermia the body maintains a relatively stable temperature whereby heat production is balanced by heat loss. When the outside environment gets too cold or the body's heat production decreases, hypothermia occurs (hypo=less + thermia=temperature).
The main symptom of poison oak, ivy, or sumac is an intensely itchy, red rash. ... However, you should contact a doctor right away if you are highly sensitive or have the following symptoms: Swelling of the face or throat; Rash on the genitals; ...
Soaking in a baking soda bath can also help with broad rashes. Only in extreme cases should you see a physician for a poison ivy, oak or sumac related rash. If the rash covers a large area of your body, is on your face, in your mouth, in your eyes, or your genitals you should seek medical treatment as soon as possible.