The best way to fight a cold is with plenty of rest and fluids, but doctors admit that medication can make the worst symptoms more bearable. But it's important to know that no drug will actually lessen the length or severity of your cold; it can only treat the symptoms.
If the pain in the buttocks is more noticeable when sitting it may be caused by tightness in the hamstring. Proximal hamstring tendonopathy and high hamstring tendonitis is defined as inflammation originating in the hamstring, causing pain in the lower buttocks, or pelvic bone region.
This may be due to direct trauma (falling on your butt), overuse, or a sudden, forced rotation of the hip, which may occur when running on an uneven surface. The inflamed muscle may cause pain in the center of the buttock or may compress the sciatic nerve causing pain, aching or tingling in the leg. Pain may be increased by sitting, climbing stairs, or squatting. Deep palpation of the center of the buttocks will cause pain, as will sudden stretches of these muscles. Initially you can run through the pain, but in many cases, symptoms become severe enough to restrict activity. The muscle tightens and may even spasm during activities, which can cause an alteration in gait.