Detailed weather for Gran Canaria Airport with a 5 to 10 day forecast, giving a look further ahead.
Fexofenadine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes /nose, sneezing, hives, and itching. It works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction.
http://www.ncbi.nlm.nih.gov/pubmed/15055564. Fexofenadine (Allegra) is drastically more effective at suppressing histamine flares than loratadine (Claritin). Speaking from personal experience, Allegra works much better than Claritin. However, if you have the option, cetirizine (Zyrtec) is more effective than both.