Hello,
This type of response to the sun sounds either like sun poisoning or possibly shingles, which is blistery, painful like pins and needles and is typically brought out by the stress of excessive sun exposure. The only way to prevent this rash, is to avoid the sun exposure. If it is sun poisoning, it increases the risk for the development of skin cancer. If it is shingles, which would not respond readily to BenzaClin, as an aside, it is caused by a dormant virus, the one that originally caused chicken pox.
What I recommend is that you wear a colored cover and avoid the development of what I suspect is sun poisoning. The sun can penetrate a white garment.
Thank you for writing. Please leave feedback. Kind regards,
Nurse
35 years of experience as a nurse, nurse educator and family nurse practitioner.