There are many treatment options available to help address your concerns. You can choose from a basic skincare routine to more involved treatments such as laser treatments, chemical peels, light therapy, micro-needling, and laser treatments for acne scarring. These will work by stimulating new collagen in your skin, which can help reduce the appearance of scars. You can look into chemical peels, laser treatments, and light therapies for hyperpigmentation and uneven skin tone. These treatments can help to break down pigmented cells and stimulate new cell growth, which in turn can help reduce the appearance of hyperpigmentation. For dullness, you can look into facial treatments such as microdermabrasion, which can help to exfoliate your skin and reduce dullness. Cost of these treatments can vary widely, depending on the type of treatment you choose. It is best to consult with a dermatologist to get better treatment options.

You may have gotten a heat rash on your forehead and back in the heat. This happens when moisture ducts get clogged and sweat gets trapped under your skin, in effect, red bumps are formed. Avoid hot and humid places, stay cool, dress in loose clothes, and use a cold compress. Keep your skin dry and clean. 

A tanned upper lip and pink lower lip might seem perplexing, but it’s pretty common. The simplest explanation would be sun exposure since our upper lips are generally more affected by the sun than our lower ones are. To tan less and protect your lips, you should always apply sunscreen before going out into the sun; if you want extra protection, use SPF lip balm as well. Eventually, the colors will even themselves out.

It seems your neck is a bit swollen but you are not feeling any pain. This could be caused by an infection or a swollen gland. Sometimes, it can occur without any serious reasons as well. However, the priority is to have a doctor take a look at it to be on the safe side. They may have to conduct some tests to be able to tell what is going on. 

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.