Skin bend?

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Not particularly itchy, much, left arm only, nothing else anywhere else

two inch wide patch, halfway up forearm tio just above elbow



Noticed it 10 hours after 2 dives
First max 23m, 35min dive, 4min stop at 3m
2nd 16m, 45mins, 4min stop at 4

interval too short at about 40 mins

Picture can't beattached, feedback appreciated
 
10 hours seems like a long time. Was most of the dives spent near the maximum depths? Did you dive a computer? How much NDL time left did it say you had? Were you into deco on surfacing? Were you cold, stressed, did a lot of physical activity during or after the dive? Symptoms are often ambiguous in their origin. Anyway there's not enough information to come to a conclusion. DAN's emergency line is a ready source of information and can point you to more help if needed. There at 919-684-9111.
 
Previous diving? Diving at high altitude? Fast ascent rate?? Fly immediately afterwards? Call DAN and talk to them but I would have dived that plan and most of my 2 dive plans are similar to this. VPlanner shows:

Decompression model: VPM - B
DIVE PLAN #1
Surface interval = 5 day 0 hr 0 min.
Elevation = 0ft
Conservatism = Nominal

Dec to 75ft (1) Air 50ft/min descent.
Level 75ft 33:30 (35) Air 0.69 ppO2, 75ft ead
Asc to 10ft (37) Air -30ft/min ascent.
Stop at 10ft 1:50 (39) Air 0.27 ppO2, 10ft ead
Surface (39) Air -30ft/min ascent.

Off gassing starts at 54.2ft

DIVE PLAN #2
Surface interval = 0 day 0 hr 40 min.
Elevation = 0ft
Conservatism = Nominal

Dec to 52ft (1) Air 50ft/min descent.
Level 52ft 33:58 (35) Air 0.54 ppO2, 52ft ead
Surface (36) Air -30ft/min ascent.
 
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Wear you diving short sleeves in Cozumel?
Do you have a photo?
He's brand new to SB so I don't guess he can post url or attach a pic yet - spam controls.
 
Was diving on my 2g... Proper profiles, had one dive two days earlier of a similar nature, dc set for micro bubble protection

Not in coz

Can't post pic but it is reddush, little speckles, kind of rough


Here I am next morning still a light rash, no itch
I am an ex instructor, tdi and bsac,
 

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