Taking cold medicine may cause bubbles in the urine, but other causes cannot be ruled out. Taking cold medicine after a cold and finding bubbles in the urine may not just be due to the medication, but the following scenarios are possible: 1. Drug reasons: when the patient takes cold medicine for non-steroidal drugs, and the dosage is large, it may lead to bubbles in the urine, suggesting that the amount of drug use may affect the function of the kidneys, at this time, it is recommended to suspend the use of the relevant drugs, immediately go to the hospital, and use the drugs reasonably under the guidance of a professional doctor; 2. Urine changes: patients themselves during the cold if they drink less water, accompanied by fever, there may also be more foam in the urine, this is because the urine is concentrated, at this time it is recommended to appropriate more nutrition, drink more water. 3. Complicated diseases: When the cold triggers other diseases, such as urinary tract infection, it may also lead to a large number of bubbles in the urine, at this time it is recommended to carry out antibacterial treatment, but it is recommended that the use of medication under the guidance of a medical professional. It is recommended to go to the hospital for timely consultation, complete the relevant laboratory tests for evaluation, and follow the doctor’s instructions for symptomatic treatment, so as to avoid delays in the condition.