Mombasa county has confirmed 32 cases of Chikungunya fever out of 120 suspected cases.
Chief health officer Hadija Shikeli, in a statement read by communications director Richard Chacha, said the disease is closely related to dengue fever.
Both are spread by mosquitoes.
The confirmation followed after the health department received complaints from among residents.
The county asked residents to stop using pawpaw leaves as a way of easing joint pains associated with the disease.
"We have enough medicine. People should stop treating themselves with leaves. Drink too much of it will overwhelm the kidney," Chacha said.
Chikungunya symptoms include high fever, joint pains, body weakness, nausea, dizziness, rush and abdominal pains.
The county officials urged residents to visit medical facilities so that they could be tested and treated.
Chacha further advised on use of mosquito repellents, proper drainage of stagnant, among other measures akin to those used to control malaria.
"The county government has taken measures of screening all houses in Mombasa. We are already spraying and destroying mosquito breeding areas."