Irritant Dermatitis (skin allergy/inflammation of the skin) caused by pesticide in cherry tomatoes (Eczema?)

On each of 25 March 2010 and 1 April 2010, I bought a packet of about 680 grams at S$0.70 of cherry tomatoes from a shop near my home and I have been eating them as a snack.

But I have also been suffering from very small ‘cuts’ with no blood on some of my fingers and yesterday I started to have a very small mouth ulcer.

Are the pesticide residues on the cherry tomatoes the probable cause of this latest skin problem?

Should I stop eating the cherry tomatoes?

What do you think?