Abstract: An apparatus 101 for applying treatment gas to a wound, burn, infection or otherwise damaged skin area comprises an inflatable dome 103 attached to the surrounding skin portion 105 by a seal gasket 107. An age-degradable adhesive 215 seals and attaches the seal gasket to the surrounding skin portion. A re-sealable adhesive 213 releasable attaches the dome to the seal gasket. A treatment gas hose 109 and nozzle 111 provide treatment gas to the interior portion 107 enclosed by the inflatable dome. Stimulator electrodes 117, attached to the apparatus provide electrical stimulation to skin portions 105A surrounding the wound area, which together with the treatment gas, promote healing of the wound. The re-sealable adhesive allows quick and easy removal and reapplication of the inflatable dome without removal of the seal gasket.