My 5-month-old baby stiffens several times an hour, and has been doing so for the past 3 days. I would like to know what I can do to relieve him.

If your baby is showing signs like stiffening of the body and legs, along with excessive drooling, it could be a sign that their gums are bothering them as their teeth start to come in. It's important to consult with a doctor to rule out any other potential issues that could be causing these symptoms. Don't hesitate to seek medical advice and guidance for your baby's well-being.