Impact of long COVID-19 on posttraumatic stress disorderas modified by health literacy: an observational study inVietnam

Objectives@#The prevalence of posttraumatic stress disorder (PTSD) has increased, particularly among individuals who have recovered from coronavirus disease 2019 (COVID-19) infection. Health literacy is considered a “social vaccine” that helps people respond effectively to the pandemic. We aimed to investigate the association between long COVID-19 and PTSD, and to examine the modifying role of health literacy in this association. @*Methods@#A cross-sectional study was conducted at 18 hospitals and health centers in Vietnamfrom December 2021 to October 2022. We recruited 4,463 individuals who had recovered from COVID-19 infection for at least 4 weeks. Participants provided information about their sociodemographics, clinical parameters, health-related behaviors, health literacy (usingthe 12-item short-form health literacy scale), long COVID-19 symptoms and PTSD (Impact Event Scale-Revised score of 33 or higher). Logistic regression models were used to examine associations and interactions. @*Results@#Out of the study sample, 55.9% had long COVID-19 symptoms, and 49.6% had PTSD.Individuals with long COVID-19 symptoms had a higher likelihood of PTSD (odds ratio [OR], 1.86; 95% confidence interval [CI], 1.63–2.12; p < 0.001). Higher health literacy was associated with a lower likelihood of PTSD (OR, 0.98; 95% CI, 0.97–0.99; p = 0.001). Compared to those without long COVID-19 symptoms and the lowest health literacy score, those with long COVID-19 symptoms and a 1-point health literacy increment had a 3% lower likelihood of PTSD (OR, 0.97; 95% CI, 0.96–0.99; p = 0.001). @*Conclusion@#Health literacy was found to be a protective factor against PTSD and modified the negative impact of long COVID-19 symptoms on PTSD.

Burn caused by acid, hot slake lime and tar: some principles for primary management

The author showed some principles in primary management for chemical burn. After burning, the lesion should be treated immediately by pouring cold fresh water continuously for 10-15 minutes on the lesion. Then the lesion should be treated depends on causes. For acid-caused burn, wash the lesion by diluted base solutions, then applying the bicarbonate sodium solution 10-20%-soaked bandage. For base-caused burn, use diluted acid solutions to wash. For burn due to hot slake lime, the lesion can be washed by fresh water, sugar solution 20% or ammonium chloride 10%, then dressed by acid boric 3%-soaked bandage. For burn lesions related to hot tar, use vegetable oil and petroleum with ratio of 3:1 to clear the hot tar on the skin, then treat the burning lesion.

Some opinions of the effect of biafine on the scar healing in the delayed healing scars

Subject: patients with the clean and small burn (1%) less than 160 cm2; biafine. Results showed that physiological indicators were not change after 7 days of use of biafine. Patients feel convinience, cool in the burn area. After 7 times of the distribution of bandage, the slight red granulation tissues occured, free edema, primary scar generation the soft scar occurred in the ninth and tenth day. There were no patients with the bad results.