After chiggers bite, symptoms such as generalized soreness, fever, and scorching may occur. 1. Generalized soreness: Scrub typhus is an acute infectious disease caused by Rickettsia orientalis infection, and rodents are the main source of infection, spreading mainly through the bite of chiggers. After being bitten by chiggers, chigger dermatitis will occur, localized skin will appear erythema, pimples, and accompanied by pain, and then the symptoms of generalized aches and pains. 2. Fever: After being bitten by chiggers, localized erosion, oozing and ulceration may occur, and inflammatory stimulation triggers high fever, which usually reaches 39~41 degrees Celsius, and the fever is not regular. 3. Scabs: after chiggers bite, deep red congestive macules will appear all over the body, mostly distributed on the trunk and limbs, and the most typical symptom is the scorched scabs on the biting area. Scabs are round or oval, mostly 4~10 millimeters in diameter, with prominent edges and surrounded by erythema. The appearance of this symptom should be promptly consulted, and it is recommended that standardized treatment be carried out under the guidance of a doctor and in accordance with medical advice.