What could a red raised itchy patch of skin on the back of the neck be?

PSORIASIS, Eczema or a fungal/bacterial dermatitis. It is important to have a doctor look at it, as the appearance and history of how it developed matters quite a bit in order to make a diagnosis and treat it for you.
Eczema vs dermatitis. This sounds like inflammation of the skin localized to one spot. Dermatitis is a fancy term for inflammation of the skin. Try treating with either a topical steroid such as Cortaid (hydrocortisone) or an anti-itch lotion such as sarna or sarna for sensitive skin. If this does not resolve it, see your doctor.

Related Questions

Red very itchy rash dr aid she didn't know what it is all over back chest inner thigh neck arms shoulders had for two days bad itchy skin

Many possibilities. There are many things that could cause the skin to itch. Several types of inflammatory conditions of the skin, allergic reactions, and sometimes bacterial, viral or fungal infections can cause rashes on the skin. Insect bites can also be the cause of a rash on the skin. Have it evaluated by a professional and get the appropriate treatment. Read more...

Why do I have a red, itchy rash with no bumps along my jawline and neck? I have sensitive skin. Just started taking gildess fe 5 days ago.

Dry skin,shaving? With sensitive skin consider shaving as primary trigger. Soap water and skin trauma from shaving likely suspects. Moisturize regularly with unscented products, use non-soap cleansers and shaving products should help. Read more...
Stop Gildess. If you suspect gildess, stopping it for a couple of week would be a prudent approach but there are also other probabilities. If the problem persists and not helped with Hydrocortisone cream, consider seeing a dermatologist. Read more...

3yr old Raised itchy rash over back of neck arms and legs only. No fever. Just recovered from general virus. What could it be? Exclude from kindy?

Mgt. From your description there may be an allergic reaction. I would advise letting your PCP know and a dose of over the counter children's anti histamine such as Claritin (loratadine) may be used. It may be related to the virus or an allergic trigger. Your PCP will obtain a history including whether there were new foods, medications, lotions etc. Read more...

I have a itchy rash on my neck and head and the back the back of my neck has some swelling. What may be the cause.?

Needs to be checked. It needs to be evaluated as the rash is there can be few causes of this.Have you used any cream or ointment.See your doctor or a dermatologist it could be a bug bites, skin infection like impetigo, sometimes the bug bites get infected as well. Read more...

How can I get rid of an itchy rash with swelling on the back of my head near my neck?

Get a diagnosis. Get a proper diagnosis. It could be fungal (tinea capitis) or bacterial (cellulitis) or allergic. These are all treated differently so it is important to know which one you have. Read more...