Anonymous @
#1957

Watch out for some foods, especially peanuts, eggs, nuts, shellfish, and some food additives. Certain pain medications, such as aspirin and ibuprofen
Physical stimuli such as pressure, temperature, exercise, and sun exposure. Bacterial infections, including urinary tract infections Viral infections, such as the common cold and hepatitis, Pet dander, and even Pollen. See more at: https://www.healthline.com/health/signs-of-stress#brittle-nails