Why is my hair falling and face darkening?

These dark spots are known as hyperpigmentation administered after skin injury therapy. This is a natural condition that occurs after any injury to the skin, such as a cut or a scrape. Azelaic Acid is a very suitable solution, but, likely, you will not see impressive outcomes soon. Vitamin C serum and products with niacinamide are also good for you. Always remember to protect your skin from the sun with sunscreen. 

The contact dermatitis can last a long time. It depends upon the nature, frequency and duration of the exposure to the allergens. If the exposure to the allergens continues it might take very long time. If the exposure to the allergens is stopped then it will be recovered quickly.

Usually, cold sores appear as red, swollen bumps on or around your lips. They can hurt a little and may have clear fluid inside them. The virus responsible for cold sores is known as herpes simplex. You could try using over-the-counter creams or ointments to make them heal quicker. Always wash your hands and avoid touching the sore so it doesn't spread. 

Premature gray hair occurs when your hair loses its natural color earlier than expected, often before the age of 30. You may notice gray hair becoming more common or see more gray strands than usual. The main cause is usually genetics, but factors like stress, poor diet, and certain medical conditions can also contribute. Maintaining a balanced diet, managing stress, and using hair products with vitamins can help support hair health and slow the graying process.

You may have hives. Hive­s are caused when some­thing bothers your body. This something can be food, plant, or dust. Whe­n your body dislikes these things, it make­s hives. The hives move­ around your body and come and go. To feel be­tter with hives, stay away from things that bother you. You can take­ medicine to stop the itching. Drink lots of wate­r and get plenty of rest. 

It seems like you are going through mastitis which is an infection in the breast tissue. The pus-like discharge is a sign of infection. Mastitis can result from bacteria entering the breast via a cracked nipple or blocked milk duct. It is important to keep on taking any prescribed antibiotics and not to squeeze the breast because it can make the infection worse. Ensure you feed and pump frequently in order to clear the infection. With proper treatment and rest, mastitis can generally be cured within a week.