Possibly a blood clot. You really need to let a doctor look at this thing.
lipoma
Yes, it is important to have the bump on your neck checked by a doctor.
One of these is called acne. Untreated or under-treated, it can cause scaring and pitting of the skin.
Infection of the skin itself by bacteria, viruses, fungi, or parasites is the most common cause of skin lesions.
Peeling skin isn't a sign of an STD, but it deserves and exam. The cause could be psoriasis, eczema, contact dermatitis, or other skin conditions.
Cyst
lipoma
Horsefly bites are red and form a small bump on the skin. The bump turns hard and may develop a pustule on top.
A hard bump under skin on the side of the nose that comes and goes sounds like a common zit. However, it also could be a calcium deposit.
There are man things that can cause risen bumps on a persons skin. Bug bites, spider bites, and acne can cause bumps on the skin.
A bump is a lump like, for example, a bump on your skin or a bump in a road.
Yes, it is important to have the bump on your neck checked by a doctor.
It could be chicken pox
Similar to a bee-sting reaction; you have just introduced a toxin under your skin.
Bruises or swollen.
keloid...
Yes, some people are more bruising than others. If bump remains for longer than a few days without change, tell your doctor.