Page 116 - Community pharmcy practice E-book 2025

02/11/2025, 00:29

Symptoms of methemoglobinemia include:
Pale, gray or blue-colored skin, lips and nail beds Shortness of breath
Fatigue
Confusion & headache Light-
headedness
Rapid heart rate

"Symptoms can occur within minutes to hours after benzocaine use"

4. Antiseptic

Chlorhexidine (POM) (mouthwashes, gel,…)
Antiseptic and disinfectant agent

Herpes Simplex/Cold Sores/Fever Blisters

Fluid filled blisters
Contracted during childhood
Located at the junction of oral mucosa and the skin of the lip and nose
The viruses is latent & become reactivated secondary to certain stimuli: fever, physical or
emotional stress & ultraviolet light exposure
Most recurrent episodes of herpes are preceded by a prodromic phase: tingling, itching or
redness. These can last for up to 24 hours before lesion development

Differential Diagnosis

Condition Characteristics
Canker Sores Painful ulcers inside the mouth, not contagious
Herpes Simplex/Cold Sores Fluid-filled blisters, usually on lips, contagious

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