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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Can Exposure To Sun While On Letrozole Cause Itchy Rashes On Skin?

Hi Dr. Mintz, My name is Reba & I am a 4 yr breast cancer survivor. I take several medications including Letrozole(Femara). I have been on vacation at the beach and after a couple of days I broke out in what looked like to me was mosquito bites because the places on my body were raised and itching. My question is, can taking Letrozole and being in the sun this past week cause this?
Fri, 19 Aug 2016
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General & Family Physician,  's  Response
This is not due to letrozole. This is due to sunlight exposure at beach. Excessive exposure to sunlight causes sunburn. Sunburns are caused by UV radiation rather than heat. Sunburns destroy skin, which controls the amount of heat our bodies retain or release. Anyone who visits a beach, or simply is out in the sun can get sunburned. Sometimes it causes skin blisters also.
Advice
1.     Apply Spectraban sensitive sunscreen before going to sunlight. You can also use sunscreens which are used for cosmetic purpose preferably with Sun Protection Factor (SPF) more than 50
2.     Try to avoid exposure to sunlight
3.     Apply ice pack 3 – 4 times daily
4.     Apply aloevera-based lotions such as Elovera cream 3 times daily for soothing effect
5.     Drink 3 – 4 liters of water
6.     You can take over the counter anti – inflammatory such as ibuprofen 400 mg thrice daily per oral after meal for 5 days
7.     Fully cover your skin with cloth whilst in sunlight

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Can Exposure To Sun While On Letrozole Cause Itchy Rashes On Skin?

This is not due to letrozole. This is due to sunlight exposure at beach. Excessive exposure to sunlight causes sunburn. Sunburns are caused by UV radiation rather than heat. Sunburns destroy skin, which controls the amount of heat our bodies retain or release. Anyone who visits a beach, or simply is out in the sun can get sunburned. Sometimes it causes skin blisters also. Advice 1. Apply Spectraban sensitive sunscreen before going to sunlight. You can also use sunscreens which are used for cosmetic purpose preferably with Sun Protection Factor (SPF) more than 50 2. Try to avoid exposure to sunlight 3. Apply ice pack 3 – 4 times daily 4. Apply aloevera-based lotions such as Elovera cream 3 times daily for soothing effect 5. Drink 3 – 4 liters of water 6. You can take over the counter anti – inflammatory such as ibuprofen 400 mg thrice daily per oral after meal for 5 days 7. Fully cover your skin with cloth whilst in sunlight Thanks