It is difficult to be sure about these bumps without being able to see your son.Children sometimes get an illness called hand foot and mouth disease which is caused by a virus. Just the hands may be affected,but this usually clears up in less than 2 weeks. A reaction to flea bites can also cause bumps on the hands and a skin condition called scabies can also do this. Please take your son to be seen by a doctor so that a definite diagnoisis can be made.
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