Whether or not being active for three days with a sprained foot has any effect depends on the severity of the injury, but overall activity is not recommended. Severe strains have the potential to aggravate the condition or even cause a break. Minor strains are not likely to have serious consequences even with a little bit of activity. If the ligament is slightly strained, there is no serious swelling or bruising, and you don’t feel strong pain when you press on it, the ligament is still flexible and elastic. If there is a small amount of activity, it is unlikely to affect recovery. However, braking and rest are still recommended to avoid repeated losses. If it is a serious strain with obvious lumps and pain, the ligament has already suffered damage to the fibers, edema or even a partial tear at this time. There is a risk of aggravating the damage or even a rupture if activity occurs. Once a ligament tear or tear fracture occurs, cast immobilization or even surgery is required. It is recommended to seek medical attention, make a clear diagnosis and standardize the treatment of ankle ligament strains. It is not recommended to do activities in the early stage, you can wear ankle protection and walk with the help of crutches to avoid aggravating the injury.