¿Por qué se oscurece la zona de mi labio superior?

White spots on your skin resembling watery on your hands and legs may be a condition known as eczema. Eczema can cause your skin to become dry, itchy, and red. It takes place when the epidermis barrier is damaged. You could help with eczema by keeping the skin moisturized with mild creams or ointments. Scratching the infected areas driving the course of the disease to a secondary infection.

Nose pie­rcings sometimes get infe­cted. Redness, swe­lling, pus appear when germs e­nter. Soframycin ointment doesn't tre­at piercing infections. Saline solution (saltwate­r) gently cleans the are­a. Rinse piercing multiple time­s daily. If symptoms persist beyond seve­ral days, consult a doctor. Avoid over-the-counter antibiotic cre­ams; they aren't effe­ctive for piercings. 

Cold sores result from the herpes simplex virus spread by close contact such as kissing or sharing eating utensils. Nonetheless, passing herpes through sharing food or drinks is very unlikely. Signs may commence with a tingling sensation and itching feeling then develop into blisters on the lips or around the mouth. To avoid contracting herpes simplex virus, refrain from sharing cutlery and glasses besides washing hands often.

You may have a cut that has bacteria in it. Some things that can show if your cut is infected are if it is red, hot, painful, or has pus. Be sure to wash the wound softly with soap and water, put some antibiotic cream on it, and cover it with a bandage. Keep an eye on it and go to a doctor if it gets worse.
 

Without a physical examination, it is difficult to understand your problem and the cause of it. I advise you to visit a dermatologist for proper diagnosis of your condition. Based on that, he may recommend the right treatment for your problem which can include antibiotic or anti-inflammatory creams.