1. Have a first aid kit
2. Execute this in debug

[] spawn {
	player setDamage 0.8;
	
	player playMoveNow "AinvPknlMstpSnonWnonDnon_medic_1";
	uiSleep 2;
	
	player playMoveNow "AinvPknlMstpSnonWnonDnon_medic_1";
};

3. Right after executing said code, treat yourself with a first aid kit.

The only animation that will play is the first playMoveNow. The treat animation will be skipped and you'll remain untreated. However, all scroll wheel actions will stop showing up (aside from the ones that switch weapons).