I've had one small red blotchy spot on the inner underside of my thigh. Appeared months ago, went away. It came back 2 weeks ago but with itchiness.

Skin lesions. Always need to give a good description when speaking of skin issues. However I do think some over the counter hydrocortisone cream would help you. Try this for 2 weeks and see how you do. Remember skin rashes take a while to resolve.