A rash on the inner thigh or near the groin can be caused by close-fitting clothing, leg shaving, or situations that result ...

An inner thigh rash is a skin irritation that develops on the inner portion of your upper legs or groin area. Warmth, ...

Deep ulcers can appear on the legs or digits. Some people with RA experience chronic or recurring hives. Hives are similar to a medication rash, but they may form independently of a medication.