I suggest your father go to the hospital for a check-up ~ ~ I think Korean products take effect quickly ~ ~ but they also have great side effects ~ ~ For example, this water may not be as good as Yunnan Baiyao ~ ~ Otherwise, why do Koreans always buy Chinese medicine ~ ~ It is a temporary analgesic effect ~ ~ I suggest not to use it more! ~ ~ ~ It's better to go to the hospital for physical therapy ~ ~ Your waist injury ~ ~ If you want to treat the old man slowly ~ ~ There must be side effects if you get quick results ~ ~ I hope your father will live a long and healthy life ~~O(∩_∩)O~