How to stop the intense itch of a healing sunburn.Tea, asprin, milk, spray,cool bath, don't help.

My 23 year old daughter got one at the beach the other day. And yes, she used a 50 factor sunscreen...for babies... as she has two little kids.  The kids didn't get burned but she did.  She is on birth control which may have made it worse.  Idk.  Nonetheless, she is itching so badly she feels she will go crazy.  I have used the internet for years trying to find a remedy for sunburn itch as we are very fair skinned and on occasion have gotten burned.  However, I avoid the sun like the plague now as do most of my children...who are adults.  Is this type of itching after sunburn hereditary?  We are of Irish descent.  I remember sunburns when I was a teen and in my twenties and thought I would die when the burn started to heal and turned to an overwhelming itch.  You can't focus on anything. The itch is way worse than the burn ever could be.  It's worse than having a baby.  At least that's what my daughter said as she had one just 5 months ago.  Has anyone else had this problem? It seems like this phase of the burn has no "real" remedy.  Nothing works. Help!!  Thanks