It seems that you might have an issue with cholinergic urticaria. This condition occurs when you are exposed to heat and your skin becomes itchy and burning. In order to cope, you should drink cool water, wear comfortable clothes.

White patches on your shaft are around sometimes because of a fungal infection called candidiasis or a disorder like lichen planus. These can show up after sex, especially if unprotected. These can be cured by taking medications ordered by a doctor after proper diagnosis. 

Initially, please consult with your parents. They may advise you some natural remedies or take you to a dermatologist. The dermatologist may suggest the best treatment for you depending on your age and skin type. Some natural remedies you can try for managing your pigmentation include applying a mask or use of a gentle exfoliator. 

Staphylococcus aureus often leads to skin infections, boils, and even more serious problems such as bloodstream infections. It's caused by bacteria that may be hard to completely remove from the body. If the usual treatments like augmentin were ineffective in getting rid of the infection, vancomycin recommended by your friend is worth considering. Vancomycin is an antibiotic usually used as a last resort for persistent staph infections, especially those that do not respond to other antibiotics. When using vancomycin, it is important to follow your doctor's advice on dosage and treatment duration. 

Lumps that develop near the penis may be caused by several factors. They may be herpes if they're either tender or similar to blisters. Moreover, among other signs, you might also experience some irritation in the groin. Herpes is an infectious virus that can be transmitted from one individual to another through sexual intercourse. However, to make sure, it is better to visit your healthcare provider and undergo the necessary tests. Proper medication and expert advice are necessary for the prevention and care of it.

APPLY moisturizer.... AVOID TRIGGERS.... USE mild soaps.... WET compresses.... COTTON clothes.... Remember to follow these steps!!

Stretch marks on the­ bum are pretty normal. They happe­n when skin expands rapidly, like during pube­rty, pregnancy, or weight gain. Basically, the marks form whe­n deeper laye­rs tear. To reduce the­ir appearance, moisturize re­gularly with retinol or hyaluronic acid products. Proper nutrition and hydration can lend a hand too. Ke­ep in mind, fading takes time, so stick with the­ routine patiently. The marks look purple­ at first, but gradually lighten over months.

Vitamin B12 and vitamin D deficiency lead to hair loss. It is advised that you see a dermatologist and an endocrinologist for a thorough examination and treatment.