Pronunciation: [tˈuːθ ɹˈaʃ] (IPA) 
The spelling of "tooth rash" is quite simple. The first word, *tooth*, is spelled with the usual consonant cluster of T and TH. The second word, *rash*, is spelled as it is pronounced with the short A sound and the SH consonant cluster. The IPA phonetic transcription of "tooth rash" is /tuθ ræʃ/. It is important to spell words correctly so that they can be easily understood and to avoid confusion when communicating.
Tooth rash refers to a condition that manifests as redness, irritation, or inflammation of the skin surrounding the tooth area. The term "tooth rash" is not a widely recognized medical term and may be used colloquially to describe discomfort or symptoms occurring near the teeth. These symptoms could be caused by various factors, including poor oral hygiene, allergies, or certain dental procedures.
Poor oral hygiene can lead to the accumulation of plaque and bacteria on the teeth, eventually leading to gum disease or gingivitis. This condition can cause redness and swelling around the affected teeth, which could be referred to as a tooth rash.
Allergies to certain dental materials, such as metals used in dental fillings or orthodontic brackets, can lead to localized allergic reactions in the mouth. These reactions could result in skin irritation or redness in the tooth area, which might be colloquially called a tooth rash.
Additionally, some individuals may experience temporary skin irritation or inflammation after undergoing dental procedures like scaling and root planing or dental extractions. This discomfort around the teeth could be referred to as a tooth rash, even though it is a transient and localized reaction.
It is important to note that "tooth rash" is not a medically recognized term, and if experiencing any discomfort or irritation in the mouth or around the teeth, it is advisable to seek professional dental advice to determine the exact cause and appropriate treatment.
Strophulus.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
