Discoid eczema, also known as nummular eczema, is a less common form of eczema that causes round or coin-shaped patches of irritated skin. These patches often appear on the lower legs, hands, or elbows and may be intensely itchy, inflamed, or prone to recurring flare-ups. In Canada, discoid eczema is often aggravated by cold weather, […]
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Cold sores are small, fluid-filled blisters that typically develop on or around the lips, mouth, nose, or chin. They are caused by the herpes simplex virus (HSV). Many people are exposed to the virus in childhood, and once acquired, it remains in the body for life. In Canada, cold sores are common and usually harmless,
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Shark bites can occur without warning, as most people are unaware that a shark is nearby before an encounter. In some cases, individuals experience a bump or abrasion rather than a true bite, often when a shark is investigating activity at the water’s surface. Shark skin contains tiny, tooth-like structures that are abrasive and can
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Human bites can range from minor surface injuries to serious, high-risk wounds that require urgent medical care. These injuries may occur through deliberate biting, accidental contact with teeth, or during physical altercations. Because the human mouth contains a large number of bacteria, human bites have a high risk of infection, even when the wound appears
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Hydrocolloid dressings are a specialized type of wound dressing designed to create a moist, insulated healing environment. They protect wounds while allowing the body’s natural enzymes to support tissue repair. These dressings are widely used in first aid and clinical care because they are easy to apply and do not require daily changes. Hydrocolloid dressings
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A surgical incision is always at risk for infection if it is not properly cared for during recovery. Early recognition of infection is critical, as untreated surgical site infections can lead to increasing pain, delayed healing, extended hospital stays, and in severe cases, life-threatening complications. The most common warning signs of an infected incision include
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A leg ulcer is an open wound on the leg that is slow to heal or fails to heal properly. These wounds are most often linked to poor circulation, diabetes, or problems with the veins or valves in the legs. Without proper care, leg ulcers can persist for months and may become infected. The
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Power saw injuries can range from minor cuts to severe, life-altering trauma, depending on the type of saw, blade speed, depth of injury, and the body part involved. Power saws are widely used across Canada in construction, woodworking, manufacturing, and home renovation, making injury awareness and prevention especially important. The hands and fingers are most
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Proper bandage application is a core first aid skill used to protect wounds, control bleeding, reduce swelling, and support injured joints or limbs. Knowing how to correctly apply a bandage is essential when caring for an injured family member, coworker, or member of the public. In Canada, correct bandaging techniques are taught in Basic, Intermediate,
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A partial thickness burn affects the upper two layers of the skin — the epidermis and part of the dermis. Unlike superficial burns, this type of injury can worsen over time, sometimes progressing into a full thickness burn even after initial first aid has been provided. Because partial thickness burns carry a high risk of
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