Quassia amara extract at 4% demonstrated to have clinical efficacy for rosacea. When compared to metronidazole 0.75% as usual care in a randomized, double-blinded clinical trial, Quassia amara extract at 4% demonstrated earlier onset of action, including improvement in telangiectasia, flushing, and papules. Quassia amara showed a sustained reduction of global assessment score at day 42 (reduced to 4.68 from baseline 7.65) compared to metronidazole at day 42 (reduced to 6.32 from baseline 7.2), p<0.001. Laser
Evidence for the use of laser and intense pulsed-light therapy in rosacea is poor. Outcomes
The highly visible nature of rosacea symptoms are often psychologically challenging for those affected. People with rosacea can experience issues with self-esteem, socializing, and changes to their thoughts, feelings, and coping mechanisms. Epidemiology
Rosaceae affects around 5% of people worldwide. Incidence varies by ethnicity, and is particularly prevalent in those with Celtic heritage. Men and women are equally like to develop rosacea. See also
Seborrheic dermatitis
Keratosis pilaris

References
External links

Rosacea at Curlie
Rosacea photo library at Dermnet
Questions and Answers about Rosacea, from the US National Institute of Arthritis and Musculoskeletal and Skin Diseases
In regions of the world where the disease is common eflornithine is provided for free by the World Health Organization. Research
Trypanosomiasis could, in future be prevented by genetically altering the tsetse fly. As the tsetse fly is the main vector of transmission, making the fly immune to the disease by altering its genome could be the main component in an effort to eradicate the disease. New technologies such as CRISPR allowing cheaper and easier genetic engineering could allow for such measures. A pilot program in Senegal, funded by the International Atomic Energy Agency, has considerably reduced the tsetse fly population by introducing male flies which have been sterilized by exposure to gamma rays. This has allowed a change of cattle breeds from lower producing trypanotolerant breeds to higher-producing foreign breeds, and was selected as one of the Best Sustainable Development Practices on Food Security by EXPO Milan 2015. Other animals
Nagana, or animal African trypanosomiasis, also called Souma or Soumaya in Sudan. Surra
Mal de cadeiras, or Quebra Bunda (of central South America, Brazil)
Murrina de caderas (of Panama;  Derrengadera de caderas)
Dourine
Cachexial fevers (various)
Gambian horse sickness (of central Africa)
Baleri  (of Sudan)
Kaodzera  (Rhodesian trypanosomiasis)
Tahaga  (a disease of camels in Algeria)
Galziekte, galzietzke (bilious fever of cattle; gall sickness of South Africa)
Peste-boba (of Venezuela; Derrengadera)Some species of cattle such as the African buffalo, Ndama, and Keteku appear trypanotolerant and do not develop symptoms. Calves are more resistant than adults.Tsetse-borne species of trypanosomes have entered zoos outside the traditional tsetse zone in infected animals imported for the zoo.