Should I worry about sore open bump on breast?

To avoid atopic dermatitis, keep your skin hydrated and avoid the factors that can provoke flare-ups. Use mild soaps and detergents, wear soft cotton clothing, and do not scratch. If you have symptoms of atopic dermatitis, it's necessary to visit a dermatologist for appropriate diagnosis and management.
 

To avoid blade cut marks, a new wound should be kept clean and properly covered to minimize scars. When healed, apply scar treatment cream or silicon gel sheets regularly to reduce the appearance of scars. Do not expose the scar to sunlight because the UV rays darken it. For more severe or prominent scars it is necessary to refer them to the dermatologist for professional treatments such as laser therapy and microdermabrasion. For the situations with deep scarring, sometimes a cosmetic revisional surgery might be an option but it is always best to seek advice from a dermatologist on individual basis.

Herpe­s is a common virus. It causes itchy, painful sores. The­se blisters often appe­ar around your mouth or private parts. You can get it through close contact. He­rpes may seem bad, but doctors can give­ you antiviral medicine. Using protection during se­x helps prevent spre­ading it too. Good hygiene habits are also ke­y. 

Skin tags near the­ perineum are ge­nerally innocuous. They rese­mble small protrusions of skin. Friction and rubbing of the skin causes the­ir formation. At times, itchiness or blee­ding may occur if irritated. If they cause discomfort, a doctor can re­adily remove them safe­ly. Maintaining cleanliness and dryness of the­ area can prevent furthe­r development.

If you put salt (NaCl) on a cut it may hurt a bit. The reason for this is that salt is able to kill germs. Therefore if you rub salt in a wound it will only be painful temporarily. If it hurts too much or continues hurting for too long, rinse the area with water. An application of a mild ointment has the ability to protect broken skin.

According to your symptoms, it is melasma that you might have. It is common during pregnancy as dark marks are forming on the face, especially on the nose and cheeks. It is recommended to visit a dermatologist who can accurately identify and treat your condition

Acne scars and pigmentation can be treated with topical creams, chemical peels, and laser therapy, depending on the severity of the condition. You must consult a dermatologist for correct diagnosis and treatment plan.