Loads of 'fun' during Field Camp. Hardly had decent rest during
the course of it. The likes of thunderflashs thrown near our
freshly setup tent and raping of our 'wives' very common thruout
back then.
And yes, we eat dirt every now and then while knocking down for the
20s, 40s and 60s whichever they felt appropriate.
Above all that, you do learn quite a fair bit of field craft like
one of the forumite mentioned... it'll helped in the long run.
That's why u are there for BMT... to get the basics right.

Oh, abt ya skin cond... do let your MO and Instructors know
prior to the FC. They do not want nasty surprises nowadays.

In any case your cond goes beyond flaring up and need
hospitalization... at least they were told beforehand and allows u
to go outfield.