How can a fix my memory card

My micro SD git lost in the mud for 2 weeks. I found it and was so happy, but now I can’t pick it up on my tablet or phone, it win’t work. Is there any thing that can be done?

Make sure the contacts are clean of all mud and/or grit or corrosion. Other than that, there’s nothing else one can do to ‘fix’ a memory card.

Thanks