Aphthous stomatitis stomatitis may show herpes virus within the epithelium of the mucosa, but without any productive infection. In some persons, attacks of ulceration occur at the same time as asymptomatic viral shedding and elevated viral titres. In some instances, recurrent mouth ulcers may be a manifestation of an allergic reaction. Possible allergens include certain foods ("e.g.", chocolate, coffee, strawberries, eggs, nuts, tomatoes, cheese, citrus fruits, benzoates, cinnamaldehyde, and highly acidic foods), toothpastes, and mouthwashes. Where dietary allergens are responsible, mouth ulcers usually develop within about 12–24 hours of exposure. Sodium lauryl sulphate (SLS), a detergent present in some brands of toothpaste
The Gifts of the Body the patients and the caregiver. The book contains ten short stories, the titles of each being associated with "gifts" which are various functions of the body, both physical and emotional: sweat, wholeness, tears, skin, hunger, mobility, death, speech, sight, hope, and mourning. The caregiver experiences each "gift", as he/she deals with patients who have AIDS, showing the different shared relationships in each case. Each patient is a distinct case, differing in terms of age, financial situation, attitude toward the illness etc., showing the reader that this disease affects all types of people. The book is written in the "no-frills style"