Aloe vera gel is a soothing, light moisturizer for irritated skin. Many people use it on sunburns. I like to use it on my face sometimes, as well as a lightweight gel for my hair
Jojoba oil is an amazing non-greasy oil for the skin. It can be used in the scalp, to calm the skin and to condition the hair.
These can be found at any drugstore/health store. I like to mix some aloe vera gel with a few drops of jojoba oil and it always works great. also keeps my hair soft and smooth with no icky greasy feel!
HTH and hope your scalp feels better soon