According to the NHS, drinking a small amount of alcohol while taking paracetamol is usually safe. However, excessive consumption of both alcohol and paracetamol can have dangerous side effects, such as stomach upset, bleeding and ulcers, liver damage, and a rapid heartbeat. It is not recommended to take paracetamol to relieve headaches after drinking alcohol, as the active ingredients in paracetamol can double the harm to the liver. Therefore, it is important to follow the recommended dose of paracetamol and not exceed it, and to avoid excessive alcohol consumption when taking paracetamol. If you have any concerns or questions about taking paracetamol with alcohol, it is best to consult with a healthcare professional.