What Causes Itching And Bumps Around Eyes After Exposure To Sunlight?

Hi, may I answer your health queries right now ? Please type your query here...hi my mum is 47yrz she is a thyroid patient n is exposed alot 2 direct sunlight...d area around her eye is very sensitv n very itchy sumdays she gets dese lump like stuf under her eyes.she uses good skin products and a sunblock.please advice as 2 wat cud dis b.we live in south africa.