Sunscreen after radiotherapy

I finished radiotherapy two weeks ago, after a wide local excision for DCIS in October. My skin is in quite good condition, still a bit blotchy red/brown and sore in places, but not too bad. I am going to the West Indies in mid January, on a cruise booked long before my diagnosis. I am looking for a high factor sunscreen that works but does not stain my new holiday clothes yellow! Can anyone recommend one please? I will probably need to buy online as we live in the country, so shopping for sunscreen at this time of year is impossible! Thanks!

Most factor 50 suncreams made for children will be fine e.g. Nivea ,they don’t add perfume /colours .