Acne is a very common skin condition that affects most people at some point in their lives. Acne can be mild, moderate or severe and is characterized by blackheads, whiteheads, pimples, and cysts on the face, back, chest, shoulders and neck.
The most common type of acne is called acne vulgaris (common acne). Acne vulgaris occurs when hair follicles become clogged with oil and dead skin cells under the surface of your skin. The result is comedones (blackheads) or whiteheads. If these blockages become inflamed and infected, they become impure red bumps called pustules or papules (pimples). If these swellings get deep enough to reach the dermis or subcutaneous tissue below the surface of your skin, they can cause painful cysts that sometimes leave scars behind when they heal.
Best acne treatment vary depending on whether your acne is mild or severe. Mild cases of acne can be treated with topical medications prescribed by your doctor
Acne can be mild to severe and may produce permanent scars if left untreated. People with acne often experience significant psychosocial problems such as depression, anxiety and low self-esteem.
There are many treatments available for acne including over-the-counter treatments, prescription medications and laser therapy. Treatment depends on the person’s age and severity of acne, so it’s important to see your doctor to determine which treatment would work best for you.
There are many different types of acne, including:
Whiteheads (closed comedones). These are smaller than blackheads and appear as small, flesh-colored bumps on the skin’s surface. They’re formed when a clogged pore closes off but doesn’t completely release trapped oil and dirt.
Blackheads (open comedones). These are larger than whiteheads and appear as dark bumps on the skin’s surface. They’re created when a clogged pore opens up but still contains trapped oil and dirt after exfoliating from the skin.
Pimples (papules). These are inflamed red spots that have borders around them and contain pus or other liquid material within them. They can be tender or painful when touched or pressed upon.
Pustules (acute papules). These appear as pus-filled bumps on top of the skin’s surface that have red borders around them.
Risk-Reward Ratio Calculation
Risk reward ratio is a measure of the amount of risk associated with a proposed investment compared to the potential return. The risk-reward ratio is used to determine if an investment is worth its price. If an investment has a low risk-reward ratio, it means that the potential loss is small compared to what could be gained. Conversely, when this ratio is high, there is a greater chance of losing money.
The calculation for risk reward ratio involves several steps. First, take the expected return (ER) on your investment and divide it by the standard deviation (SD). This gives you a percentage for your ER divided by SD. Then multiply that number by 100 so that you get a percentage instead of a decimal value. Finally, subtract 1 from this number and multiply it again by 100 so that you get another percentage value. The result is your risk-reward ratio.