<s>[INST] Hello My son who's 13yrs of age has complained of pain in his lower back continuing sometimes to his bottom at times it makes it hard to walk for him pain comes and goes. Is it something I should seek medical emergency care or can I wait to see his Doctor on Tuesday being that Monday is a holiday? [/INST] Hello, Thanks for your query.He might be suffering from Acute mechanical back pain.1. Hard bed rest for 2-3 days3. Hot water fomentation to back 2-3 times a day4. Physiotherapy - Interferential therapy (IFT) to his back will help you relieve the pain5. Avoid leaning forward, sitting for prolonged time or lifting heavy weights. These activities can increase his back pain.Even after a week if his pain doesn't gets relieved, better to get him examined by an orthopaedician. He might ask  to take an Xray of backI do hope that you have found something helpful and I will be glad to answer any further query.Take care </s>