Elderly people with purple spots on the lower part of the stomach with pressure and pain have more causes, the common ones are herpes zoster, boils, and allergic purpura, etc. They can be treated with medication, but the appropriate medication should be chosen according to the specific cause of the disease. 1. Herpes zoster: this is a viral infection, the main symptom is clustered papules along the nerve course, but in the early stages of the disease may also be purple spots, and may be accompanied by localized neuralgia. Oral acyclovir, vasiclovir, bromvudine, etc. can be taken, and topical application of penciclovir cream, etc. can be applied. 2. Boils: boils are acute suppurative inflammation of hair follicles and their surrounding tissues, which can be treated with topical fusidic acid ointment, etc. Oral amoxicillin and erythromycin can be taken when the infection is severe. 3. allergic purpura: capillaries and small arteries of the leukocyte fragmentation vasculitis, mainly manifested as skin purpura, in addition may also be accompanied by abdominal pain, etc., part of the self-healing, the treatment of the application of antihistamines such as chlortetracycline, with the use of prednisone and other glucocorticosteroid therapy, if necessary, the pain is obvious that can be taken orally acetaminophen. The old man has purple spots on the lower part of the stomach with pressure and pain should be timely consultation, clear reasons, standardized treatment, such as the need for medication, should be used in accordance with the doctor’s instructions.