What could be the cause of a growing lump on my lower back after an injury?

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.

The redness you see might be a cause of infection. It can be managed by washing the area properly with soap and water. Next, put an over-the-counter antibiotic ointment and cover it with a bandage. If the redness starts to expand, you get a fever, or if there is pus, seek medical help immediately.

If its only acne marks, continuing your acne treatment with facewash and gels will improve it. Some topical agents also helps in removing the pigmentation and marks of the acne. Even Salic acid 20% gel at night on spots is helpful. Glyco 6 or Glycolic acid 6% is recommended for application on the face. Acne compatible sunscreen is also helpful. Chemical Peeling with glycolic acid or salicylic acid is useful

You are suffering from a long-term problem with your beard itching, redness, and sticky dandruff. A skin condition seborrheic dermatitis may be the cause. Occasionally, the use of antifungal ointments like clotrimazole can be effective, but if this is not the case, you might want to use an ointment with hydrocortisone to decrease inflammation. Remember to wash and dry the area that is affected as this will help with the symptoms.

The numerous factors that lead to skin allergies on the backside and legs include irritants, allergenic agents, infection or autoimmune disorders. It is necessary to consult a dermatologist that will conduct sufficiently comprehensive evaluation and suggest adequate options for treatment. Self-diagnosis and self treatment can make the situation only worse complicating it.

The boil-like structure could be a symptom of an infection. Pain and irritation while urinating are the most frequent. These include antibiotics or antifungal creams to help with the infection. The area should be kept clean and dry for a quicker recovery process. Drink lots of water and do not use strong soaps on the wound. 

Vitiligo is a condition where white patches develop on the skin and face. It occurs when cells that produce color for our skin die. Common signs include white spots appearing especially in areas exposed to sun. Treatment options comprise using topical steroids, light therapy, and skin grafts. It is important to wear sunscreen to protect affected parts. 

Creamy cleanser( low level of PH)  will be good for skin that is dry  and for part of your skin that is oily(nose) foaming cleanser will be good. But use moisturizer later. I hope this proved helpful.