I think you need to get in to see your doctor. If it starts to swell or if the skin gets hot to the touch in one area , please go to the er.Because that could signal a blood clot.I'm thinking you have some inflamation that is causing it to feel hot on the inside and if it doesn't change then you should take motrin so it will stop. Depending on you my doctor usually has me take 4 at a time.Which is 1600 milligrams. If it gets at all worse though , please see your doctor. Hope this answers your question and I hope you start feeling better. If you agree , please press the accept button. Or if you have any more questions please let me know. Gail