Most likely you are describing dyshidrotic eczema. This nonallergic rash appears on the palms and alongside the fingers. Because skin in that region is thick, you can see small blisters as little red spots.
Cause is unknown. Correlations with exposures nearly always fail to stand up.
Treatment isn't necessary, because the condition resolves spontaneously, even if it recurs from time to time. If it bothers you, you can treat it with a prescription-strength cortisone cream. Perhpas visit to skin doctor would be in order, for definitive diagnosis and treatment.
Best.
Dr. Rockoff
Dr. Rockoff
Skin has now started to peel. Skin feels fairly dry and is still Red.
BTW I never saw any blisters?