Quadriceps strains are mostly seen in strenuous sports, running and jumping sports. In less severe quadriceps strains, the recovery time is usually 1-2 weeks. For more severe quadriceps strains, the recovery time is 1-2 months. The extent of the strain can be initially determined by the local pain and swelling. If the pain and swelling are not very severe, the strain is relatively mild. If the local swelling is significant and even affects the local knee flexion and extension, the strain is more severe. For more severe quadriceps strains, an MRI is needed to determine the extent of the strain and whether there is any significant muscle rupture. The local area can be iced first to reduce swelling and pain, and after 24 hours, hot compresses can be applied to activate blood circulation and remove blood stasis, while swelling and pain aerosol can be sprayed. If you are not allergic to ointment, you can apply some pain-relieving ointment appropriately. In case of obvious pain, you can take painkillers, such as aminoglutethimide, etc.