I've suffered with heat rash before on holiday, so I took Cetirizine antihistamine for a week before I came to Barbados and am still taking it now. However I still got heat rash 3 days ago so bought 1% hydrocortisone and cetaphil antibacterial soap to wash with - still didn't work. So I went to the medical centre and got 20mg Prednisolone steroids to take 3 times a day for 5 days, I have taken 4 so far over the last day or so and still have bad heat rash. I want to sunbathe and get a really good tan - do you think I need to give prednisolone longer to work or is there anything else I can try? I'm desperate - it's ruining my holiday.

also how do you get rid of sunburn asap? my sister has it bad.