How can I protect myself from sunlight?

Hi,

Welcome to icliniq.com. The problem quoted by you as a petechia with blood stream infection and increased white blood cell count is broad in the sense it can include, sepsis due to bacterial infection, viral hemorrhagic fever, or parasitic infections. Whatever might be the cause; infections are usually spread through water, food and vectors like mosquitoes. Drink purified water and protect yourself from mosquitoes by applying repellant creams if they suit you. It seems you have photo allergy that is photosensitive skin to ultraviolet rays. Continue using antihistamines and topical creams, which you are using now and cover as much skin as possible whilst you are out in the sun. If you have severe sun sensitivity with blisters then you should be evaluated for systemic lupus erythematosus particularly molar rash or butterfly rash on face by testing for ANA and also for porphyrias (accumulation of porphyrin - group of rare diseases). Confine your summer excursions to early in the morning and late in the evening. Wear clothes that cover exposed areas uniformly. Use sunscreens with SPF 50 particularly that which has Zinc in it. I also suggest vitamin D supplement and antioxidants like carotenoids and polyphenols. Consult your doctor, discuss with him or her and take the medicine with consent. Avoid your tour to high altitudes and snowy areas as snow reflects sun and may cause worse sun burn.