Allergy to the sun, the skin rash and itching after a stay in the sun

Help to figure out what to do? For the second year in a holiday in the sun is an allergic reaction to the chest, arms, legs, and on top of the stomach, small red dots that itch terribly, this year took a protective high protection (20SPF) and each day has diazolin one tablet three times a day, all-well, even with a small movement of the sun was feeling as though skin beat thousands of needles, and then the rash appeared, which is very scratch, and this year, instead of tanning using again a high degree of protection appeared pigmented cream spots, birthmarks, and lay down tanning spots, ie on the brown background of the white community. The skin I am not white but rather black, before such problems were not. Very frightened and very upset, because want at least minimal comfort sunburn! Can be taken any other drugs, more powerful than diazolin? Is it possible to recover in this situation to stay in the sun, it was like before the advent of painless and beautiful smooth tan?

You must be tested frequently, such solar urticaria is a symptom of more serious illness.
What to do:
- Clinical analysis of blood, an overall analysis of urine.
- Indicators of serum.
- Ultrasonography of abdominal organs, glands schtovidnoy.
- Hubbub thyroid.
- Tested for parasites and the worm to visit the allergist, Laura, endocrinologist.

Oh, I opened this topic, did not see that it already has!
So this is not the culprit in the sun, and some internal problems?

Absolutely. Urticaria - so often a symptom of some distress in the body.

is urticaria?
Though yes ... like the hives!
Thank you for your advice, be sure to check in .... and who better to check?
just a dermatologist was - did not help .... from a physician immunologist ... ???????????
Who???

Start with the allergist. He will explain to you all))