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; ...
There can be any number of reasons your face is swollen, but most common ones are described here. 1  Allergic reaction: It is defined as an over-response of the bodyâs immune system to particular substances called allergens. 2  Anaphylaxis: Anaphylaxis is the most severe form of allergic reaction that could be fatal.