Beyoncé Knowles 'rescued' her sister's wedding. Solange tied the knot with videographer Alan Ferguson recently, but the nuptials nearly resulted in a disaster when the 'Losing You' hitmaker reacted badly to the seafood.

The bride's mother, Tina, said: "[Solange] went through the wedding and the sit-down dinner and she was just fine, and then they had a second line in the streets of New Orleans and she was dancing so hard, I think she just got overheated. And the seafood - she had a reaction to it. So her face broke out in welts."

allergy tablet

The 28-year-old bride disappeared from the festivities for two hours, while Beyoncé gave her an allergy tablet.

Tina explained: "[Beyoncé] took her back to the hotel and gave her Benadryl and in two hours she showed up at the reception and did the dance with her son and just had a ball."

Tina, 60, continued to gush about the 'heartfelt' wedding.

She told Entertainment Tonight: "There wasn't a dry eye in the place.

"[The couple] were just so heartfelt and I just think the wedding epitomised Solange as a person, and her and Alan's artistic flare."

Meanwhile, sources revealed that Beyoncé and Jay-Z had a great time at the wedding, too. An insider previously said: "Beyoncé and Jay-Z were totally into it and so affectionate. They both kept putting their hands on each other's butts and they were dancing up a storm. Beyoncé and Jay-Z were so friendly to everyone and very gracious. They seemed so genuinely happy. They were having the best night."